The Project Gutenberg eBook of American medicinal barks
This ebook is for the use of anyone anywhere in the United States and
most other parts of the world at no cost and with almost no restrictions
whatsoever. You may copy it, give it away or re-use it under the terms
of the Project Gutenberg License included with this ebook or online
at www.gutenberg.org. If you are not located in the United States,
you will have to check the laws of the country where you are located
before using this eBook.
Title: American medicinal barks
Author: Alice Henkel
Contributor: B. T. Galloway
Release date: November 28, 2025 [eBook #77360]
Language: English
Original publication: Washington: Government printing office, 1909
Credits: Hendrik Kaiber and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive)
*** START OF THE PROJECT GUTENBERG EBOOK AMERICAN MEDICINAL BARKS ***
U. S. Department of Agriculture. Bureau of Plant Industry—Bulletin no. 139.
B. T. Galloway, Chief of Bureau.
American Medicinal Barks.
by
Alice Henkel, Assistant, Drug-Plant Investigations.
Issued June 5, 1909.
Washington:
Government Printing Office.
1909.
Bureau of Plant Industry.
Chief of Bureau, Beverly T. Galloway.[Pg 2]
Assistant Chief of Bureau, Albert F. Woods.
Editor, J. E. Rockwell.
Chief Clerk, James E. Jones.
Drug-Plant Investigations.
scientific staff.
R. H. True, Physiologist in Charge.
W. W. Stockberger, Frank Rabak, Arthur F. Sievers, Experts.
Alice Henkel, Assistant.
G. Fred Klugh, T. B. Young, S. C. Hood, Scientific Assistants.
Letter of Transmittal.
U. S. Department of Agriculture,[Pg 3] Bureau of Plant Industry, Office of the Chief, Washington, D. C., September 1, 1908.
Sir: I have the honor to transmit herewith and to recommend for
publication as Bulletin No. 139 of the series of this Bureau the accompanying
manuscript, entitled “American Medicinal Barks.”
This paper was prepared by Miss Alice Henkel, Assistant in Drug-Plant
Investigations, and has been submitted by the Physiologist in
Charge with a view to its publication.
Thirty-five drugs are fully described, and under many of the descriptions
briefer information concerning closely related species is
included. All of the “official” barks obtained from trees and shrubs
occurring in this country are described, as well as many “nonofficial”
ones.
This bulletin forms the second installment on the subject of American
medicinal plants, the first one treating of American root drugs,
and has been prepared to meet the steady demand for information
concerning the medicinal plants of this country. It is intended as a
guide and reference book for those who may be interested in the study
or collection of the medicinal plants found in the United States.
Among the manifold uses of the trees of our forests not the least
important is the utilization of their barks for medicinal purposes.
While the “official” barks—that is, those that are recognized in
the Eighth Decennial Revision of the United States Pharmacopœia—number
only seventeen in all, twelve of which are furnished by trees
and shrubs growing in the United States either as native or introduced
species, there are many others which are nevertheless used in
medicine to a considerable extent by one or another school of practitioners.
All of the “official” barks are described in this bulletin,
and an effort has been made to include such “nonofficial” ones as
seemed to be most in demand, judging from the trade catalogues of
wholesale dealers in crude drugs, but a number of others that are not
so much used have been omitted on account of lack of space. The
number of drugs fully described is thirty-five, but under many of the
descriptions closely related species are also briefly treated.
Many factors have contributed to the destruction of our forests.
Beginning with the settlement of this country, when land had to be
cleared of timber to make way for homes, and on through the centuries
there have been steady and increasingly heavy drafts upon our
natural forest resources by an increasing population and the building
up of various new enterprises, and until within very recent years with
little or no thought for the needs and welfare of generations to come.
In the collection of barks, too, may be seen another instance contributing
in a measure to the depletion of our forests; for too often
trees are felled and killed outright simply for the sake of obtaining
the bark, or a tree is peeled to such an extent that death is certain to
result. When it is considered that of cascara sagrada (Rhamnus
purshiana) alone about 100,000 trees are annually sacrificed, and that
the oak, pine, elm, birch, poplar, willow, and larch all contribute
their quota of bark, it will be seen that at no very distant date more
careful methods of bark collection and the replanting of now denuded[Pg 8]
areas will be needed. The Forest Service of the United States
Department of Agriculture has issued Forest Planting Leaflets, giving
full information in regard to the planting and propagation of
many of our forest trees, and anyone interested in the subject can
have these leaflets for the asking.
The statements herein regarding medicinal uses are based on the
information contained in various dispensatories and other works
relating to materia medica, and in a publication of the character of
this bulletin can, of course, be referred to only in the most general
manner. It is not the purpose herein to prescribe the use of any of
these barks for medicinal purposes; such use should be made only
under the direction of a physician.
The writer is indebted to Mr. George B. Sudworth, Dendrologist
of the Forest Service, for an examination of the manuscript and for
the use of a number of photographs taken by him and other members
of that Service.
Other illustrations in this bulletin have been reproduced from
photographs taken from nature by Mr. C. L. Lochman, and use has
also been made of a number of illustrations found in the Handbook
of the Trees of the Northern States and Canada, by Mr. R. B. Hough.
The writer also wishes to gratefully acknowledge information of
various kinds furnished by wholesale drug dealers.
The Collection of Barks.
As with other medicinal portions of plants, the best time to collect
the barks is at a period when the greatest quantity of the active constituents
is contained therein. In the case of barks this is in early
spring, before active growth takes place, or in late fall or even
winter.
There are various methods of obtaining the bark. In some cases
the outer corky layer is first shaved off before the bark is peeled, a
process which is known as “rossing.” This is generally done where
the outer layer is considered inert. Then incisions a few inches wide
are made, and, depending upon the nature of the bark, sometimes
strips several feet in length are peeled. The barks of some branches
or roots are removed by making long, lengthwise incisions, permitting
the bark to be readily slipped off, or in other cases the bark is first
loosened by pounding with a mallet.
After collection, the bark is taken to a clean, well-aired place for
drying, spread out on shelves or on the floor and protected from
moisture. Barks contain less moisture and absorb less moisture than
other parts of plants, but they nevertheless need to be protected
from wet weather. Sometimes barks are strung on wires or strings
to facilitate drying.
[Pg 9]
When the barks are thoroughly dried and have been broken or cut
up into suitable lengths, they may be packed in dry, clean barrels
or other proper containers ready for shipment.
It will be well to repeat here what has been said in the first of this
series of papers, entitled “American Root Drugs,” with regard to
the advisability of correspondence with crude-drug dealers previous
to shipment, in order to ascertain whether a particular drug is desired,
how large a quantity is wanted, and what price will be paid.
Samples representative of the drug to be disposed of should be sent
at the same time.
It is necessary also to emphasize the fact that the prices given in
this bulletin are approximations only, being those paid at the present
writing, and it must be remembered that before this bulletin is off
the press a drug now listed at 10 cents a pound may have declined to
5 cents or less, while a drug quoted at 2 cents may be worth 5 or 10
cents or more. The object in noting prices is simply to give prospective
collectors an idea of the range of prices, but with the constant
fluctuations that take place in the drug market it will be readily
understood that these prices can be but remotely approximate and
that the actual price to be paid can be ascertained only through
correspondence with drug dealers.
Trees and Shrubs Furnishing Medicinal Barks.
Each section contains synonyms and the pharmacopœial name, if
any, the common names, habitat, range, descriptions of the tree or
shrub, as well as of the bark as found in commerce, and information
concerning collection, prices, and uses.
Bittersweet (Solanum dulcamara) is the only one of American
medicinal plants of which the young branches alone are used, but it
is nevertheless given a place with the barks, as it can more properly
be included in this series than in any other.
White Pine.
Pinus strobus L.
Fig. 1.—White pine (Pinus strobus), leaves
and cones.
Other common names.—Northern pine, Weymouth pine, American white pine,
American deal-pine, soft deal-pine, spruce-pine.
Habitat and range.—The white pine, indigenous to this country, occurs in
woods from Canada south to Georgia and Iowa.
Description of tree.—This large, handsome evergreen tree—sometimes 200 feet
in height and with a straight trunk measuring 3 to 4 feet in diameter—has horizontal
branches, both trunk and branches covered with a smooth, grayish green
bark when young, becoming dark and rough with age, and longitudinally fissured.
The wood is soft and white, and much used for flooring, etc.
The slender, pale green leaves, or needles, are usually five in a sheath, about[Pg 10]
3 to 5 inches long, the flowers rather inconspicuous,
and the cones cylindrical,
drooping, sometimes slightly curved,
resinous, about 5 to 10 inches long and
about an inch in thickness, but much
wider after the scales spread apart,
which generally occurs in September,
allowing the seeds to fall out. (Fig. 1.)
It requires two seasons for the cones
to mature. The white pine belongs to
the pine family (Pinaceæ).
Description of bark.—The inner bark
of the white pine is the part employed
medicinally. It occurs in flat pieces
of irregular size, about an eighth of
an inch in thickness, brownish on the
outside, the inner surface sometimes
lighter colored and sometimes darker
than the outside, smoothish, and
marked with fine grooves. It breaks
with a tough, fibrous fracture, and has
a slight turpentine odor. The taste is
described as “mucilaginous, sweetish,
bitterish, and astringent.”
Prices and uses.—At present collectors
are paid from about ½ to 3 cents a
pound.
White pine bark is used as an expectorant, forming one of the ingredients
in the sirup which bears its name,
which is much used for coughs and
colds to facilitate expectoration.
Tamarack.
Larix laricina (Du Roi) Koch.
Fig. 2.—Tamarack (Larix laricina), leaves
and cones.
Synonym.—Larix americana Michx.
Other common names.—American
larch, black larch, red larch, hackmatack.
Habitat and range.—This tree frequents
swamps and moist places from
Canada south to New Jersey, Indiana,
and Minnesota. It is native in this
country.
Description of tree.—In spring the
light green, feathery appearance of the
young leaves of the tamarack make it a
rather conspicuous and attractive tree.
It is a slender tree belonging to the
pine family (Pinaceæ), but unlike other
members of this family, except bald
cypress, it loses its leaves upon the
approach of winter. The bark is thin
and close, finally becoming scaly. The
wood, which is light brown in color, hard and resinous, is strong and durable.
The tamarack has horizontally spreading branches, and reaches a maximum[Pg 11]
height of 100 feet. The pale green leaves, which appear early in spring, are
short, very slender, and needle shaped, from 20 to 40 together in a fascicle, or
bundle, similar to the manner in which pine needles grow, except that they are
without sheaths (fig. 2).
The aments, or flower clusters, are inconspicuous, and are of two kinds,
staminate or male, and pistillate or female. The female clusters have a reddish
and greenish tinge, and develop later into small erect cones, resembling in miniature
cones of some of the pines and spruces (fig. 2).
Description of bark.—The tamarack bark, as found in the stores, is in rather
large, coarse pieces or slabs, having the
outer layer removed. The outer surface
has a rather fibrous appearance,
cinnamon brown in color, occasionally
showing patches of brownish red or almost
purplish where the outside layer
has been imperfectly shaved off; the
inner surface is smooth and light brown.
The whole breaks with a somewhat
woody fracture, showing ragged, splintery
edges. The odor is rather strong
and disagreeable.
Prices and uses.—Tamarack bark at
present is paid for at the rate of from
1½ to 3 cents a pound.
The bark, in decoction, is said to be
useful as a tonic and alterative, and
also as a laxative and diuretic.
Aspen.
Populus tremuloides Michx.
Other common names.—White poplar,
American poplar, trembling poplar,
American aspen, mountain-asp, quaking
asp, quiverleaf, auld-wives’-tongues.
Habitat and range.—The aspen is
found in dry or moist soil from northern
Canada and Alaska south to the
mountains of Pennsylvania, to southern
Illinois, northwestern Missouri, and in the
Rocky Mountains to Lower California.
Description of tree.—The greatest height attained by the aspen is 100 feet,
with a trunk measuring about 3 feet in diameter. It is a native of this country
and belongs to the willow family (Salicaceæ). The branches and trunks of the
younger trees are covered with a smooth, light grayish green bark, but on older
trees the bark becomes dark and deeply fissured (fig. 3). The young unfolding
leaves are whitish and woolly, but become smooth as they expand. The
leaves are broadly oval or rounded, with a somewhat heart-shaped base, a
short-pointed apex, and finely round-toothed or frequently saw-toothed margin
(fig. 4). They are about 1½ to 2 inches in length, and are borne on long,
slender stalks which are flattened on the sides, causing the leaves to be set in[Pg 12]
motion by the slightest breeze and to quiver and tremble almost continually,
which has given rise to some of the tree’s common names, such as quaking asp,
trembling poplar, and quiverleaf. Early in spring, before the leaves are out,
the drooping catkins appear, the staminate
(male) from 1½ to 2½ inches long,
the pistillate (female) crowded and
longer. The capsules which follow
are conical in shape, pointed, and two-valved
(fig. 4).
Description of bark.—This bark generally
occurs in straight pieces from
about 2 to 5 inches long and about
one-fourth to one-half inch wide. The
outside is grayish and smoothish except
here and there where marked
with lenticels. The inner surface is
somewhat rough to the touch, light
colored to brownish. The fracture is
even, somewhat corky, and the odor
faintly aromatic.
Collection, prices, and uses.—The
bark of the aspen, or white or American
poplar, as it is often known in the
drug trade, is collected in spring, and
collectors are paid from about 1 to 4
cents a pound.
It is used for its tonic properties, and has also been employed in the treatment
of intermittent fever.
As in the case of the willows, to which family (Salicaceæ) the poplars belong,
the glucoside salicin is also obtained from the barks of the various species of
Populus.
White Willow.
Salix alba L.
Other common names.—Salix, common European willow, duck-willow, Huntington
willow.
Habitat and range.—The white willow has been introduced into this country
from Europe, and has sparingly escaped from cultivation. It occurs in wet soil
along streams from Pennsylvania northward to New Brunswick and Ontario.
Description of tree.—This is a tree of very rapid growth, and attains quite
a size, sometimes 90 feet in height, with a trunk perhaps 6 feet in diameter.
There is a group of willows known as “crack willows,” on account of the
brittleness of the twigs where they are attached to the branches, and the white
willow belongs to this group, as does the “crack willow,” or “brittle willow,”
(S. fragilis), mentioned farther on. All of the species described are members
of the willow family (Salicaceæ).
The gray and rough-barked white willow has lance-shaped leaves, pointed at
the apex and narrowed at the base, and with saw-toothed margins. When
young, both sides of the leaves are covered with silky hairs, but as they mature
they become less hairy and are pale green on the lower surface, or covered with
a “bloom.”
The long, loose, green, cylindrical aments, or catkins, are staminate and[Pg 13]
pistillate and are borne on different trees, appearing with the leaves in spring.
A variety of this species, with yellowish green twigs and with leaves smooth
on the upper surface, is known as golden osier (S. alba var. vitellina (L.)
Koch), and is the most common form found in North America.
Description of bark.—The white willow bark of commerce is generally in
tough, flexible strips, the outer surface smooth or slightly wrinkled, and of a
yellowish brown or grayish brown color. The inner surface varies from a light
brown to darker brown, and is marked with long, fine lines. White willow
bark has a bitter, astringent taste, but practically no odor.
Collection, prices, and uses.—The best time to collect white willow bark is
in the spring when the sap begins to flow, at which time it is easy to remove.
White willow bark should not be kept very long, as the salicin content
diminishes with age. This bark itself is not official in the United States Pharmacopœia,
but the glucoside salicin obtained from it is so recognized. The
medicinal properties of willow bark depend upon its two most important constituents,
salicin and tannin.
Salicin has tonic, antiperiodic, and febrifuge properties, and is occasionally
employed in rheumatic affections.
The wood of white willow furnishes a very pure charcoal which is used in
the manufacture of gunpowder. The young branches, known as osiers, are
much used in the manufacture of baskets, etc.
The prices paid to collectors range from 2 to 5 cents a pound.
Other species.—Roughly speaking, the willows, or Salix species, may be said
to be divided into two classes, those with yellowish twigs and those with
reddish or purplish twigs. Most of the yellow-barked species belong to the
“crack willows,” which have their twigs attached in such a manner that they
break off very easily. It is claimed that the red or purple barked twigs contain
the most salicin, while those with yellow twigs are richest in tannin.[1]
Of those containing the most salicin may be mentioned the crack willow,
or brittle willow (Salix fragilis L.). This, a native of Europe, has escaped
from cultivation in this country, and occurs from Massachusetts to New Jersey
and Pennsylvania. It is a tall and slender tree, the trunk covered with a
rough gray bark, and the twigs with reddish green bark. At the point of
attachment the twigs are very fragile and break off readily. The twigs when
planted grow very rapidly. The leaves are 3 to 6 inches in length, long pointed
and narrowing toward the base, smooth, dark green on the upper surface, and
of a lighter color underneath, and with margins slightly toothed. The flowers
appear in April or May; the fruiting catkin is rather loose and about 3 to 5
inches in length, while the staminate or male catkin is only about 1 or 2 inches
long.
Another species employed in medicine is the black willow, pussy-willow, or
swamp-willow (Salix nigra Marsh). This is a native willow and occurs along
the banks of rivers from Canada to Florida; it is not found west of the Great
Plains, except in southern New Mexico and Arizona and isolated in California.
It is tall and has a rough dark brown or black bark, and brittle yellowish
branches. The leaves are narrowly lance shaped, and the catkins (pussy-willows)
appear about the same time as the leaves, the male catkins about 1
to 2 inches long, and the female catkins as long as 3 inches, spreading apart
in fruit. The bark of this species is used in medicine and the fresh aments, or
catkins, are also employed.
Other common names.—Wax-myrtle, candleberry, candleberry-myrtle,[Pg 14] wax-berry,
tallow-bayberry, tallow-shrub, bayberry wax-tree, American vegetable
tallow-tree, vegetable-tallow, American vegetable-wax.
Habitat and range.—The bayberry, which is indigenous, is found in sandy
swamps or wet woods from Texas and Florida northward to Arkansas and along
the coast of Maryland. In its southern home it is a small evergreen tree, but
as it goes farther north it becomes, successively, a tall semideciduous shrub
or a dwarfed and deciduous shrub.
Fig. 5.—Bayberry (Myrica cerifera), leaves
and fruit.
Description of tree.—The greatest height attained by the bayberry is about 40
feet, but it is usually only 3 to 12 feet high. It is slender, with a gray, smoothish
bark. The leaves, when crushed, have a fragrant odor, and are 1 to 4 inches
long, narrow, dark green and shining
above, lighter colored and dotted with
resin cells beneath, and generally with
margins entire (fig. 5).
The flowers appear from about
March to May, according to locality,
and generally before the leaves are
fully expanded. They are borne in
aments, or spikelike clusters, the male
and female flowers being produced on
separate trees. The yellowish aments
bearing the staminate or male flowers
are cylindrical, while the pistillate or
female aments are oblong, shorter than
the staminate, and greenish. The
fruit, which remains on the tree for
several years, consists of clusters of
round, bluish white berries having a
granulated appearance and covered
with a greenish white wax (fig. 5).
Each berry contains one seed. The
bayberry belongs to the bayberry family (Myricaceæ).
Description of bark.—As found in commerce, bayberry bark occurs in curved
or quilled pieces, sometimes only about an inch in length and sometimes 6
inches or more. The outside is covered with a thin corky layer, which is whitish
and somewhat fissured. Underneath this layer the dark reddish brown,
smooth bark may be seen. The inner surface of the bark is also reddish
brown, but marked with faint lines. The fracture is light red and granular.
The bark, when powdered, has a pungent, aromatic odor, causing sneezing and
coughing, and the taste is bitter, pungent, and acrid.
Collection, prices, and uses.—Late autumn is the best time to collect this root,
and after it has been thoroughly cleaned and while still fresh the bark is
loosened and removed by beating the root with a mallet or similar instrument.
Bayberry bark brings from 2 to 5 cents a pound. It is used for its tonic
and astringent properties.
The wax obtained from the berries is used for making candles.
Butternut.
Juglans cinerea L.
Fig. 6.—Butternut (Juglans cinerea), trunk.
Other common names.—Juglans, white walnut, lemon-walnut, oilnut.[Pg 15]
Habitat and range.—The butternut tree, which is indigenous to this country,
is of common occurrence in rich woods from New Brunswick to North Dakota
and south to Georgia, Mississippi, and Arkansas.
Description of tree.—This much-branched tree, belonging to the walnut
family (Juglandaceæ), is generally from 30 to 50 feet in height, rarely exceeding
100 feet, and when old has a thick, rough, brownish gray, furrowed bark
(fig. 6), and the twigs, leaf stems, and leaflets, especially in the early stages
of growth, are furnished with sticky
hairs.
The yellowish green leaves are composed
of from 11 to 19 leaflets, all
stemless except the terminal one; the
leaflets are 2 to 3 inches long, oblong
lance shaped and long pointed at the
apex, rounded or blunt at the base,
and toothed. The flowers are produced
in May, or about the same time
as the leaves, the yellowish green male
catkins 3 to 5 inches in length, and
the female flowers in clusters of 6 to 8
flowers each. In October the sweet
and oily oblong nut matures, enveloped
in a strong-smelling, sticky husk. The
edible nut itself has a thick, hard
shell, which is marked with deep furrows
or lines.
Description of bark.—Butternut bark,
from the root collected in autumn, was
official in the United States Pharmacopœia
for 1890. It occurs in quilled
pieces varying in length, and about an
eighth of an inch or a trifle more in
thickness, deep brown and smoothish
or somewhat scaly on the outside, the inner surface likewise brown and with
parts of the thin, stringy inner layer of the bark attached. It breaks with a
short, fibrous fracture, finely checkered with white and brown. The odor is
faint, and the taste bitter and acrid.
Collection, prices, and uses.—Butternut bark, which will bring the collector
from 1 to 4 cents a pound, is taken from the root collected in autumn. Its use
in medicine is that of a mild cathartic and tonic.
Ironwood.
Ostrya virginiana (Mill.)K. Koch.
Synonym.—Carpinus virginiana Mill.
Other common names.—Hop-hornbeam, deerwood, leverwood, black hazel,
Indian cedar.
Habitat and range.—The ironwood is indigenous to this country,[Pg 16] and is common
in rich woods in Canada and the eastern United States, and westward to
Minnesota and Texas. It is occasionally cultivated.
Fig. 7.—Ironwood (Ostrya virginiana),
leaves and fruit.
Description of tree.—This usually slender tree attains its greatest height,
sometimes 50 feet, in the western part of its range, while farther eastward it
grows only about 15 to 20 feet high. The brownish trunk is finely furrowed in
short, lengthwise lines. The wood is very hard and heavy, and is employed in
making farm implements.
The leaves somewhat resemble those of the sweet birch, to which family
(Betulaceæ) this tree belongs, but they are rough to the touch, instead of
smooth and shining like the birch leaf.
They are from 2½ to 4 inches in length
and about an inch or more in width,
oval or oblong-oval in shape, long
pointed at the apex, and rounded at
the base, and with margins very sharply
double toothed. The upper surface of
the leaves is usually smooth, except
sometimes slightly hairy on the veins,
while the lower surface is hairy or
even woolly. (Fig. 7.) The green, inconspicuous
flowers are borne in catkins,
male and female, and are produced
from April to May. The male
catkins are cylindrical, and about 1½
to 3 inches long, while the female catkins
are short, maturing in July or
August into large fruiting cones from
1½ to about 2½ inches in length, and
very much resembling hops (fig. 7).
Description of wood and bark.—The
inner wood and the bark, which are
bitter, are the parts employed in medicine.
The wood is white, very hard and strong, and occurs in pieces a few
inches in length and of varying thickness. The bark as found in the stores is in
flat pieces about 2 inches in length; the outside grayish green with thin, short
scales; the inside brown, marked with long fine lines or ridges, and generally
with considerable of the woody portion adhering. There is practically no odor.
Prices and uses.—At present the price paid to collectors runs from about 5 to
6 cents a pound.
Ironwood is used for its tonic, alterative, and antiperiodic properties.
Sweet Birch.
Betula lenta L.
Other common names.—Black birch, cherry-birch, spice-birch, river-birch,
mahogany-birch, mountain-mahogany.
Habitat and range.—This indigenous tree occurs in rich woodlands from
Newfoundland to Ontario, south to Florida and Tennessee.
Fig. 8.—Sweet birch (Betula lenta), trunk.
Description of tree.—Sweet birch, which somewhat resembles the cherry tree,
attains a height of from 50 to 80 feet, and has brownish red, sweet, and aromatic
bark. The bark of the trunk of older trees is rather thick, as much as[Pg 17]
one-half inch, and has rough, platelike fissures (fig. 8). The younger branches
are covered with a beautiful, shining, reddish brown bark, with a layer of
yellowish green beneath the surface,
and furnished with numerous small,
whitish spots, known technically as
“lenticels,” and which may be designated
as “breathing pores.” In most
of the birches the bark comes off in
layers, but this is not the case with
the sweet birch. The youngest twigs
of the sweet birch are densely hairy.
The wood is much used in cabinet work,
being fine and close grained, and taking
on a very high polish. It has a
rosy color when first cut, which becomes
darker by exposure.
Fig. 9.—Sweet birch (Betula lenta), leaves,
catkins, and fruit.
The young leaves are covered with
shining, silvery, silky hairs, but as
they grow older these disappear almost
entirely. In shape the leaves are oval
or oblong-oval, acute or acuminate at
the apex, somewhat heart shaped at
the base, and sharply toothed; they
are about 3 to 4 inches long and 1 to
2 inches wide, smooth, bright green
and shining on the upper surface,
and dull green on the lower surface
with hairy veins. (Fig. 9.) Like the bark, the leaves are also aromatic.
The flowers are of two kinds, staminate or male and pistillate or female, and
are borne in separate catkins or slender
spikes. The male catkins are in drooping
clusters 2 to 3 inches long, while
the female catkins are shorter, only
about 1 inch or less in length, thicker,
stemless, and nearly erect. (Fig. 9.)
They expand with the leaves or before,
about April or May. The cylindrical,
conelike fruit is about an inch
in length. The sweet birch belongs
to the birch family (Betulaceæ).
Description of bark.—The birch
bark of commerce consists of pieces of
irregular size, generally reddish
brown and smooth on the outside,
the thin outer layer having been removed,
but with pieces of it sometimes
adhering. The inner surface is
also reddish brown and smooth.
Birch bark breaks with a clean, even,
somewhat granular fracture.
Collection, prices, and uses.—The
bark is collected in late summer. It
furnishes the oil of sweet birch or oil of Betula, official in the United States Pharmacopœia,
and obtained by maceration and distillation. It is almost identical[Pg 18]
with wintergreen oil, and is employed for similar purposes. Both bark and oil
are used for flavoring. Birch bark will bring from about 1 to 3 cents a pound.
The bitter, aromatic leaves are also used in domestic practice, and birch beer
is made from the sweet sap.
Tag-Alder.
Alnus rugosa (Du Roi)K. Koch.
Fig. 10.—Tag-alder (Alnus rugosa), leaves,
catkins, and fruit.
Synonym.—Alnus serrulata Willd.
Other common names.—Common alder, red alder, smooth alder, green alder,
American alder, speckled alder, swamp-alder, notch-leaved alder.
Habitat and range.—Tag-alder is found in swamps and along the marshy
banks of streams from New England south to Florida and Texas, and westward
to Ohio and Minnesota. It is a native
of this country.
Description of tree.—Sometimes the
tag-alder, which belongs to the birch
family (Betulaceæ), attains the height
of a tree, but more often it is only a
shrub, growing from 5 to 20 feet high,
with a smooth brownish gray bark.
The leaves are 2 to 4½ inches long,
oval, somewhat leathery, green above
and below, the apex round or blunt,
and the base narrowed or rounded, the
margins minutely but sharply toothed.
The flowers are produced before the
leaves are out, early in spring, about
March or April. They are reddish
green, the female flowers borne in an
erect catkin, while the male flowers
are borne in a drooping catkin. The
small, oval, conelike fruit usually remains
on the shrub throughout the
winter. (Fig. 10.)
Description of bark.—As it occurs in
commerce, tag-alder bark is in straight,
curved, or occasionally quilled pieces of varying length and width, but generally
broken up into rather small pieces, the outer surface brownish gray or
greenish gray and smoothish, the inside cinnamon colored and closely and
coarsely ridged. It breaks with a sharp, even fracture. The odor is strong
and rather aromatic, and the taste astringent and bitter.
Prices and uses.—The amount paid to collectors ranges from 1 to 4 cents a
pound.
Tag-alder bark is used in medicine for its astringent, alterative, and emetic
properties.
White Oak.
Quercus alba L.
Pharmacopœial name.—Quercus.
Other common names.—Stone-oak, stave-oak.
Fig. 11.—White oak (Quercus alba), trunk.
Habitat and range.—The white oak is found in woods from Maine to[Pg 19] Minnesota,
south to Florida and Texas, but is most abundant in the Middle States.
It is indigenous to this country.
Fig. 12.—White oak (Quercus alba), leaves
and acorns.
Description of tree.—In dense woods
this stately tree sometimes reaches a
height of 150 feet. Usually it is about
60 to 80 feet high, the trunk about 3 to
4 feet in diameter, and with many
wide-spreading branches. The bark is
grayish and comes off in thin scales
(fig. 11). When young, the leaves are
red and hairy, becoming smooth and
thin when older, with a light green
upper surface and paler lower surface
furnished with prominent veins. In
autumn they turn a beautiful red.
The leaves are 4 to 7 inches long, and
about half as wide, borne on stems
about half an inch in length; they
are divided into from 3 to 9 oblong,
blunt lobes, with entire or toothed
margins (fig. 12). About the time that
the leaves appear, the very small
greenish or yellowish flowers are produced.
The male flowers are borne
in slender, usually drooping aments,
or spikelike clusters, and the female
flowers singly. The fruits (acorns)
mature the first autumn, and are
about 1 inch in length, about one-fourth covered by the scaly cup (fig. 12).
The white oak is a member of the beech family (Fagaceæ).
Description of bark.—The dried bark
of the white oak is official in the
United States Pharmacopœia. As
found in the stores it is in nearly flat
pieces about one-eighth of an inch or
more in thickness, rough and fibrous
on the outside, with the outer layer removed,
brownish, and the inside with
short, coarse grooves, the whole breaking
with a coarse, tough, and splintery
fracture. The odor is rather strong,
reminding one somewhat of tanbark,
and the taste very astringent. The
Pharmacopœia adds that it does not
tinge the saliva yellow when chewed.
Collection, prices, and uses.—The best
time for collecting white oak bark is in
the spring, as at that time it is said to
contain the greatest amount of tannic
acid. The outer layer is first scraped
off. As directed by the United States Pharmacopœia, the bark should be “collected
from trunks or branches 10 to 25 years of age, and deprived of the periderm.”
[Pg 20]
The price paid for white oak bark ranges from 1 to 3 cents a pound.
The bark is a powerful astringent and is also antiseptic.
Other common names.—Moose-elm, red elm, Indian elm, rock-elm, sweet
elm.
Habitat and range.—This tree is native in woods, along streams, and on hills
from Quebec to North Dakota, south to Florida and Texas. It is more common
in the western part of its range.
Fig. 13.—Slippery elm (Ulmus pubescens),
trunk.
Description of tree.—The slippery elm is usually about 40 to 50 feet in height,
although it will sometimes grow as tall as 70 feet, with a trunk about 2½ feet
in thickness. In dense woods it grows
tall and straight, branching some distance
from the ground, but in open
woods and fields, where it often occurs
singly, it is more spreading and irregular
in growth. It has a dark, reddish
wood, hard and durable, and is
covered with a rough, reddish brown
bark (fig 13). Even the small
branches are rough and the twigs are
furnished with rough hairs. The leaf
buds, a few weeks before expanding,
are soft and downy with rust-colored
hairs. Short downy stalks support the
rather large leaves, the upper surface
of which is very rough and the lower
hairy. The leaves are about 4 to 8
inches long and about 2 to 2½ inches
wide, pointed at the apex, usually
lance-shaped oval in outline, sharply
toothed, and with an obtuse, unevenly
shaped and generally heart-shaped base.
The flowers appear very early in the spring (in March or April), before the
leaves. They occur in dense, lateral clusters and consist of a bell-shaped, downy
calyx, usually 7 lobed, no corolla, and 5 or 7 reddish stamens. The winged fruit
which follows, known botanically as a “samara,” is flattened and circular;
the seed is borne in the center, surrounded by the winged, membranous margin,
which aids its dispersion by the wind (fig. 14). Slippery elm belongs to the
elm family (Ulmaceæ).
Fig. 14.—Slippery elm (Ulmus pubescens),
leaves, flowers, and fruits.
Description of bark.—The commercial article consists of pale brown or whitish
brown flat pieces tied in bundles, and it also occurs on the market in smaller
pieces of uneven size, suitable for grinding purposes, but which bring a lower
price. The flat pieces are of varying length and width, about an eighth of an
inch in thickness, the outer bark having been removed in accordance with the[Pg 21]
requirements of the Pharmacopœia, but sometimes patches of it are still found
adhering. They are tough, and break
with a fibrous fracture. The inner surface
is yellowish brown and marked
with fine furrows. Slippery elm has
a faint, peculiar odor, and a mucilaginous
but insipid taste.
Collection, prices, and uses.—The
outer bark is rossed or shaved off
before removing the inner bark from
the tree, which alone is recognized as
official in the United States Pharmacopœia.
It is taken from the tree
in long strips, and generally dried
under pressure so that it will remain
flat.
The price paid for slippery elm bark
is from 3 to 10 cents a pound, depending
upon quality, the small, irregular
pieces having less value than the
large, flat pieces.
The mucilaginous character of slippery
elm bark renders it useful in relieving
coughs, and it is also employed
in treating diarrheal complaints. It
is soothing and allays inflammation, and is also somewhat nutritious. In
certain sections of the country poultices are made from the bark and applied
to abscesses.
Synonyms.—(1) Magnolia umbrella
Lam.; (2) Magnolia virginiana L.
Other common names.—(1) Cucumber-tree,
mountain-magnolia, blue magnolia;
(2) cucumber-tree, umbrella-tree,
elkwood; (3) sweet bay, white bay,
sweet magnolia, beaver-tree, swamp-sassafras,
swamp-laurel.
Habitat and range.—(1) Magnolia
acuminata occurs in the mountainous
regions from New York to Georgia, but
is most abundant in the Southern
States; (2) Magnolia tripetala grows
in rather moist, rich soil; it is nowhere
very common, but is widely distributed
in the Appalachian Mountain region; (3) Magnolia glauca is found in swamps
and swampy woods from Massachusetts to the Gulf of Mexico.
Descriptions of trees.—Magnolia acuminata, which is native in[Pg 22] this country,
reaches a height of from 60 to 80 feet, the trunk straight, from 4 to 5 feet in
diameter, and with a rough, dark gray bark. The leaves are 6 to 10 inches
long and about 3 inches wide, oval and thin, pointed at the apex, and generally
rounded at the base; they are pale green underneath and somewhat hairy,
especially along the veins (fig. 15). The numerous, slightly fragrant flowers,
which appear from May to June, are rather large, measuring 5 to 6 inches
across, oblong bell shaped, greenish yellow with a bluish tinge, and having 6
to 9 obovate petals. The cylindrical, fleshy fruit cone, about 3 inches in length,
turns rose colored as it matures. In form it resembles a small cucumber, whence
the name “cucumber-tree” is derived. When ripe, the several capsules composing
these cones burst open, disclosing bright scarlet, shining seeds about the size
of a pea, which after a while are suspended from the cone by means of a slender,
elastic thread for some time before
falling to the ground. All of the
species of Magnolia here mentioned,
and which belong to the magnolia
family (Magnoliaceæ), bear these
scarlet seeds, and the method of separating
from the cone is the same.
The soft heartwood is yellowish brown,
while the sapwood is lighter.
Magnolia tripetala is a smaller tree,
not exceeding 40 feet in height, also
native; the smooth, gray, slender trunk
measures from 4 to 18 inches in diameter.
Its leaves are clustered at the
ends of the flowering branches, and
are from 12 to 18 inches long and about
4 to 8 inches wide, obovate, pointed
at both ends, the upper surface dark
green and smooth, the lower light green
and more or less pubescent (fig. 16).
The flowers are white, faintly odorous,
produced in May, and are 7 to 8 inches
in diameter, with 5 to 12 narrow, lance-shaped
petals. The mature fruit cone is rose colored, conical, 4 to 6 inches
long, and contains numerous scarlet seeds.
Fig. 17.—Sweet bay (Magnolia glauca), leaves and fruiting
cones.
Magnolia glauca averages about 25 feet in height, with a smooth whitish gray
trunk from a few inches to about a foot in diameter. The leaves, which are
scattered along the flowering branches, are thick and leathery, smooth, dark
green above, and on the lower surface pale green and glaucous or somewhat
hairy (fig. 17). The solitary flowers are large, terminal, of a creamy white
color, somewhat globular in shape, with obovate, rounded petals, and a very
fragrant odor; they measure about 2 to 3 inches in diameter. The fruit cone
is 1½ to 2 inches in height, oblong, and pink, with numerous scarlet seeds
(fig. 17.)
Description of bark.—Magnolia bark, as found in commerce, sometimes varies
considerably, on account of the different species from which it is collected.
They all possess similar properties, however, and the barks of the three species
herein described were official from 1820 to 1890.
The last edition of the National Standard Dispensatory (1905) contains the
following paragraph regarding the description of the bark:
“The commercial bark varies most widely, according to the species, the age,[Pg 23]
and the presence or absence of the corky layer, so that a general description
is extremely difficult. The
outer surface of old bark
of all species is more or
less ashy gray, due to the
growth of lichens. When
young, it is smooth or even
glossy and of a brown
color, varying more or less
to orange or purplish red.
With age it gradually becomes
warty, the warts at
length confluent into ridges
and the ridges at length
fissured. The inner surface
is at first whitish, becoming
gradually yellowish
or pale brown, smooth,
and very finely and closely
striate, the striæ long and
straight. When the bark
has been deprived of the
corky layer, the outer surface
is almost exactly like
the inner. In young bark,
however, a green layer appears
upon the removal of
the cork. The fracture of
the outer layer is smooth,
short, and granular, of the
inner more or less tough-fibrous.
The transverse
section is brownish and
exhibits rather broad bast-wedges
and medullary
rays. The odor is slight,
the taste warm, spicy, and somewhat astringent and, especially of the young
bark, bitter.”
Collection, prices, and uses.—The bark of the trunk or root is removed in
spring and summer.
At present there does not seem to be much demand for magnolia bark. The
price paid for the collection of the bark is about 3 cents a pound.
The bark is used for its tonic properties, for exciting perspiration, and in
the treatment of fevers.
Tulip-Poplar.
Liriodendron tulipifera L.
Other common names.—Liriodendron, tulip-tree, whitewood, canoewood, yellow
poplar, blue poplar, hickory-poplar, lyre-tree, saddle-leaf, saddle-tree,
cucumber-tree.
Habitat and range.—The tulip-poplar, which occurs in rich woods, attains[Pg 24] its
greatest size in the Middle and Southern States; its range extends from New England
to Florida, westward to Michigan
and Arkansas. It is also cultivated.
Description of tree.—This most handsome
native forest tree, a member of
the magnolia family (Magnoliaceæ),
is readily distinguished by its somewhat
peculiarly shaped leaves, and in
spring by its greenish yellow tulip-shaped
flowers. It attains great
height, from 60 to 190 feet, and is
very symmetrical in shape, with a
straight, cylindrical trunk covered
with grayish brown bark which in
young trees is smooth, but becoming
rough and fissured as the tree grows
older (fig. 18). The leaves are smooth,
generally rounded at the base, the top
notched, or appearing as though cut
straight across. They are roundish in
outline or broadly oval, from 3 to 6
inches long, and have two to four lobes
at the base and two at the top, the
margins between the lobes rounded
out, the base rounded or abruptly
obtuse. (Fig. 19.)
Fig. 19.—Tulip-poplar (Liriodendron tulipifera),
leaves, flowers, and fruit.
The erect flowers appear in spring, and although they are quite large—about
2 inches long—they are not very conspicuous for the reason that their
colors so blend with the yellow-green
foliage of early spring that they pass
almost unnoticed. On examining these
flowers more closely they will be
found to resemble tulips in form,
with a very modest coloring, however,
of green with a slight orange tinge
toward the base of the petals, and the
inside of the flower orange colored.
The flowers have six petals and three
reflexed petal-like sepals, and numerous
stamens. The fruit ripens in the
form of a dry, pointed cone, about 3
inches in length. (Fig. 19.)
Description of bark.—The bark of
both trunk and root, deprived of the
outer layer, is used medicinally, and
the tulip-poplar, or, as it is most
frequently called in the drug trade,
yellow poplar, or Liriodendron, was
official in the United States Pharmacopœia
from 1820 to 1880. It consists
of slab-like pieces 3 or 4 inches long, very light, the outside as well as the inside
of the inner bark yellowish white. When broken the fracture is ragged, splintery,[Pg 25]
and uneven. There is a pronounced heavy, unpleasant odor, and the taste is
aromatic, pungent, bitter, and somewhat astringent. The root bark is somewhat
darker than that of the tree and is considered much more powerful.
Collection, prices, and uses.—In spring the bark is easily separated from the
wood; the outer layer is shaved off, and the inner bark is then peeled in large
slabs about 6 inches in width and from 3 to 6 feet in length. The root bark
is collected in winter.
Collectors receive from about 1¼ to 3 cents a pound.
The bark of the tulip-poplar is regarded as a bitter, stimulant tonic, and is
considered useful in fevers, rheumatism, and digestive disorders.
Sassafras.
Sassafras sassafras (L.)Karst.
Pharmacopœial name.—Sassafras.
Synonyms.—Sassafras officinale Nees & Eberm.; Sassafras variifolium
(Salisb.) O. Kuntze.[3]
Other common names.—Ague-tree, saxifrax, cinnamonwood, saloop, smelling-stick.
Habitat and range.—Sassafras is a native tree, occurring in rich woods from
Massachusetts to Ontario and Michigan, south to Florida and Texas.
Fig. 20.—Sassafras (Sassafras sassafras),
leaves and fruits.
Description of tree.—Sometimes the sassafras reaches almost 100 feet in
height, its greatest height being attained in the South, but in the North it occurs
principally as a shrub. The bark of old trees is rough and fissured, and of a
grayish color, but the young twigs are smooth and green. The leaves are very
variable in outline—some oval, some with three lobes, and some with but one
lobe on the side, shaped like a mitten (fig. 20). The flowers are yellowish green
and fragrant, and are borne in inconspicuous clusters, the staminate and pistillate
on different trees; they appear
in early spring, about the time that
the leaves unfold. The fruit, which
ripens about September, is oblong
roundish, about the size of a pea, dark
blue, one seeded, and borne on a thick,
club-shaped red stalk (fig. 20). All
parts of the tree are aromatic. It belongs
to the laurel family (Lauraceæ).
The wood is light, but strong and durable,
whitish or with a reddish tinge,
and also aromatic, except in the older
trees.
Description of bark.—The dried bark
of the root of sassafras is official in
the United States Pharmacopœia. As
it occurs in the shops, it is in irregular
curved pieces of varying length;
smooth, the outer grayish layer having
been removed; rusty red, soft, and
breaking with a short, cork-like fracture.
The inside of the bark is marked with short, indefinite lines. The odor
is very aromatic, and the taste is sweetish, bitingly aromatic, and astringent.
[Pg 26]
Collection, prices, and uses.—Sassafras bark is collected in early spring or
autumn from the root, and the outer layer removed.
Sassafras bark is used for its tonic properties. It forms a popular domestic
“spring medicine,” and in early spring the market women display on their
stands bundles of sassafras bark, to be made into a tea, by many people
regarded as a useful remedy.
Sassafras oil, also official in the United States Pharmacopœia, is distilled
especially from the root bark, but often also from the whole root. Maryland,
Virginia, and Pennsylvania are the most important centers of production. It
is used as an anodyne, also as a stimulant in neuralgia, and for the purpose
of flavoring confectionery and soaps.
The dried pith (or medulla) from the branches is likewise official. It yields
a mucilaginous liquid with water, and forms a soothing application for inflamed
conditions.
The price paid to collectors may range from 2 to 10 cents a pound, according
to quality.
Other common names.—Feverbush, Benjamin-bush, wild allspice, spicewood,
snapwood.
Fig. 21.—Spicebush (Benzoin benzoin), leaves,
flowers, and fruits.
Habitat and range.—This indigenous shrub frequents damp, shady woods and
is seen along streams from Ontario south to North Carolina and Kansas.
Description of shrub.—The stemless
clusters of yellow flowers of the spicebush
appear very early in spring, about
March or April, before the leaves.
This shrub, a member of the laurel
family (Lauraceæ), ranges from 4 to
20 feet in height, and has a smooth
bark and slender green twigs. The
leaves are oval, sharp pointed, 2 to
5 inches long, about half as wide and
narrowing toward the base, lighter
colored on the lower surface, and with
margins entire. Some of the leaves
are rounded at the top. The flowers
are small, bright yellow, with a fragrant
odor, and about four to six in a
cluster, the staminate and pistillate
flowers produced separately. The clusters
of fruit ripen in autumn, and each
bright red, obovate fruit contains one
large white seed. (Fig. 21.)
Description of bark.—The thin quilled
pieces of bark, as found in commerce,
are dark brown on the outside, with
small corky warts, and lighter brown and smooth on the inner surface. In
older bark the corky excrescences will be found more prominent, and the color
is also more ashen. The bark of the spicebush breaks with a short, granular
fracture, has a faint, pleasant odor, and a warm, spicy, and astringent taste.
[Pg 27]
Collection, prices, and uses.—In the spring the bark can be readily removed
in quills, and this is generally the time when it is gathered.
At present the price paid to collectors is about 3 cents a pound.
The bark is used as a remedy against worms and is also employed in the
treatment of fevers.
The fruits are likewise employed in medicine.
Witch-Hazel.
Hamamelis virginiana L.
Pharmacopœial name.—Hamamelis.
Other common names.—Snapping hazel, winterbloom, wych-hazel, striped
alder, spotted alder, tobacco-wood.
Habitat and range.—Witch-hazel is found in low damp woods from New
Brunswick to Minnesota, south to Florida and Texas.
Fig. 22.—Witch-hazel (Hamamelis virginiana),
leaves, flowers, and capsules.
Description of shrub.—This indigenous shrub is one of our most peculiar
plants, inasmuch as it begins to flower when all other trees and plants not only
are through flowering, but generally
have lost their foliage, namely, in
November or even December. The
seed is formed, but does not ripen
until the following season. The
peculiar, yellow, threadlike flowers
among the usually bare branches at
a season when most other vegetation
is dead and the snow sometimes flies
is a novel sight.
Witch-hazel sometimes grows to
about 25 feet in height, usually only
8 to 15 feet, with a crooked stem
covered with smoothish brown bark,
often with a growth of lichens, and
having many long, forking branches.
The leaves are 3 to 5 inches long,
broadly oval or heart-shaped oval,
with uneven sides, wavy margins and
downy hairs when young, but becoming
smooth as they grow older
(fig 22).
The flowers, as already stated, appear
very late in autumn; they are bright
yellow, and consist of a 4-parted corolla, with four long, narrow, strap-shaped
petals, which are variously twisted when in full flower. The beaked, densely
hairy seed capsule matures the following season, bursting open elastically, and
scattering the large, black and shining, bonelike seeds for a distance of several
feet. Thus, while the tree is in flower, there may be seen at the same time the
mature seed capsules of the previous season. (Fig. 22.) This shrub belongs
to the witch-hazel family (Hamamelidaceæ).
Description of bark.—Under witch-hazel or hamamelis bark, official in the
United States Pharmacopœia, is understood the bark and twigs of the witch-hazel.
The bark is found in commerce in the form of quills, varying in length
and width, and is sometimes a purplish brown on the outside, sometimes a
whitish or grayish brown color; occasionally it is smooth with a few warty[Pg 28]
protuberances or numerous lenticels, and again it is furrowed and scaly, or
even ragged. The inside is pale brown or yellowish, usually with long, straight
lines. Sometimes fragments of the whitish wood are found adhering to the inner
surface, and such bark should be discarded. Witch-hazel bark breaks with
a weak fracture. There is a scarcely perceptible odor, and the taste is astringent
and somewhat bitter.
The tough, flexible twigs do not exceed one-quarter of an inch in diameter, are
branching, yellowish brown to a very dark or purplish brown, faintly wrinkled
lengthwise, and with small, round, light-colored lenticels. There is a small central
pith, and the bark which surrounds the greenish white wood occupies about
one-fifth of the radius. If the twigs are more than a quarter of an inch in
thickness, there will be too large a percentage of wood, which is inert.
Collection, prices, and uses.—The bark and twigs are the parts designated as
official in the United States Pharmacopœia. In the United States Pharmacopœia,
1890, the leaves only were official. The witch-hazel industry is carried
on to a considerable extent in portions of the New England States, the farmers
bringing in to the distilleries cartloads of the brush. Witch-hazel bark brings
about 1 to 4 cents a pound.
Witch-hazel is generally used for relieving inflammation of various kinds, and
its soothing properties were known to the American Indians. The name “witch-hazel”
is derived from the fact that formerly the forked branches were used as
“divining rods,” it having been the belief that these branches were endowed
with a miraculous power of locating treasures, sources of water for wells, etc.
The leaves are still official in the United States Pharmacopœia.
Common names.—(1) American blackberry, bramble high-bush blackberry,
one-flowered dewberry, fingerberry; (2) high-bush blackberry; (3) sand-blackberry,
knee-high blackberry.
Habitat and range.—(1) The American blackberry is found in sandy or dry
soil near the coast from Maine to South Carolina; (2) the high-bush blackberry
occurs in dry fields and along roadsides from the New England States to Florida,
west to Arkansas; and (3) the sand-blackberry frequents sandy soil from
Connecticut to Florida, west to Missouri and Louisiana.
Descriptions of plants.—The blackberries are so well known that it is unnecessary
to describe them. They are very similar to each other, differing principally
in their habit of growth, the American blackberry being a trailing plant with
slender branches, whereas the high-bush blackberry and sand-blackberry are
more shrubby plants.
Other species.—Besides the blackberries just mentioned, and which are official
in the United States Pharmacopœia, Eighth Revision, there are two others
which were official in the United States Pharmacopœia for 1890, and which are
still collected. These are the low-running blackberry (Rubus procumbens Muhl.,
syn., R. canadensis T. &G., not L.), and the low-bush blackberry or southern
dewberry (Rubus trivialis Michx.), both being generally trailing plants. All
are members of the rose family (Rosaceæ).
Description of bark.—The three species of blackberries mentioned as official
have long, horizontal rootstocks covered with a thick bark, which is the part[Pg 29]
used medicinally. In the stores it is found in long, quilled pieces, or in bands,
tough and flexible, the outside a dark reddish brown or dark brownish gray,
rather smooth or slightly scaly; inside pale brown, with long coarse grooves.
It breaks with a tough, fibrous fracture, and has no odor, but an astringent,
somewhat bitter taste.
Collection, prices, and uses.—The bark of the root is the part collected, and is
stripped by making an incision lengthwise on one side of the root, after which
it separates easily from the root, forming long quills.
At present the amount paid for the collection of blackberry bark ranges from
2 to 4 cents.
The blackberry barks possess tonic and astringent properties and form a
popular remedy in the treatment of diarrheal complaints.
American Mountain-Ash.
Sorbus americana Marsh.
Fig. 23.—American mountain-ash (Sorbus
americana), leaves and fruits.
Synonym.—Pyrus americana DC.
Other common names.—Roundwood, round-tree, American rowan-tree, American
service-tree, mountain-sumac, dogberry, quick-beam, wild ash, wine-tree,
witchwood, life-of-man, Indian mozemize, missey-moosey, moose-misse.
Habitat and range.—The American mountain-ash occurs in swamps, low
woods, or moist ground from Newfoundland south along the mountains to
North Carolina, and to Michigan. It is most
abundant in the northern portion of its
range.
Description of tree.—This is a rather
small, smooth-barked tree, very brilliant in
fall and early winter with its clusters of
bright red berries. Its greatest height is
about 30 feet, with the trunk measuring
about 18 inches in diameter, and covered
with a smooth, dull brown or grayish bark.
The leaves, resembling those of the sumac,
consist of from 11 to 17 lance-shaped, long-pointed
leaflets about 1¼ to 4 inches long
(fig. 23). When young they are somewhat
hairy, both sides becoming smooth later,
bright green on the upper surface, but
usually lighter colored on the lower, the
margins sharply toothed with short, stiff
teeth. The white flowers are borne in dense
clusters measuring 3 to 6 inches across,
and have an urn-shaped calyx, 5 rounded
petals, and numerous stamens. The American
mountain-ash, which belongs to the
apple family (Malaceæ), flowers about May
or June, and is followed later in the season
by large, dense, showy clusters of round, bright red berries, about the size of
peas (fig. 23). It is indigenous to this country.
Description of bark.—As found in the stores, American mountain-ash bark
consists of coarse pieces of varying length, about a quarter of an inch in thickness,
with the outer layer removed; the outside is yellowish or pale brown,
smoothish or sometimes with faint, lengthwise wrinkles, the inside smooth
and brown. It is odorless, but the taste is bitter and astringent.
Prices and uses.—At present American mountain-ash bark brings from about[Pg 30]
3 to 5 cents a pound. It is used for
its tonic, astringent, and antiseptic
properties.
Wild Cherry.
Prunus serotina Ehrh.
Fig. 24.—Wild cherry (Prunus serotina),
trunk.
Pharmacopœial name.—Prunus virginiana.
Synonym.—Prunus virginiana Mill.,
not of Linnæus.
Other common names.—Wild black
cherry, cabinet-cherry, black choke,
rum-cherry, whisky-cherry, Virginian
prune-bark.
Habitat and range.—The wild cherry
occurs in woods or open places, and is
most abundant in the Southeastern
States, but its range extends from
Nova Scotia to Florida, westward to
Texas, and north through Indian Territory,
the eastern portions of Kansas,
Nebraska, and South Dakota.
Fig. 25.—Wild cherry (Prunus serotina),
leaves, flowers, and fruits.
Description of tree.—The elongated,
drooping, pretty clusters of white
flowers of the wild cherry are usually produced in May. The tree sometimes
reaches a height of 90 feet, and a maximum trunk diameter of 4 feet. The
trunk is straight and covered with a
rough black bark (fig. 24), the young
branches, however, smooth and reddish.
The reddish brown wood of the
wild cherry is fine grained, hard and
strong, susceptible of polish, and is
used in cabinetmaking.
The leaves are thick and oval, about
2 to 5 inches long, smooth and shining,
bright green above and somewhat
hairy on the veins beneath, the margins
furnished with callous teeth.
The clusters of flowers borne at the
ends of leafy branches are generally
somewhat drooping, and consist of
many small, white, 5-petaled flowers
with numerous yellow stamens, the
clusters of white against the green
background making it a rather attractive
tree. The cherries ripen
about August or September, and are
globular, black, or very dark purple,
about the size of a pea, and have a
sweet, somewhat astringent, and bitter taste. (Fig. 25.) The wild cherry,
which is a native of this country, belongs to the plum family (Amygdalaceæ).
[Pg 31]
Description of bark.—In commerce wild cherry bark is usually found in
curved or irregular pieces, the outer surface smooth and somewhat shining,
of a light green or brownish green color, and showing numerous transverse,
light-colored lines or grooves, or “lenticels,” as they are technically known.
The inner surface is rust colored, marked with netlike grooves, or fissures. It
breaks with a short, granular fracture. The taste is aromatic, astringent, and
pleasantly bitter, reminding one somewhat of bitter almonds, as does the odor
when the bark is soaked in water.
Collection, prices, and uses.—The bark, which is official in the United States
Pharmacopœia, should be collected in autumn, as at that time it contains the
greatest amount of hydrocyanic acid. The outside layer is removed, so that
the green layer underneath shows, and the bark is then carefully dried and
preserved. Wild cherry bark should not be kept longer than a year, as it
deteriorates with age. The bark from very small or very old branches should
not be used. Young, thin bark is considered superior.
The price to collectors at present ranges from 1 to 6 cents a pound, the
highest amount being paid for the “thin green,” the next best price for the
“thick green,” and the lowest for the “thick rossed.”
Wild cherry bark is used for its tonic properties, and it also exerts a sedative
action.
Prickly Ash.
(1) Xanthoxylum americanum Mill. and (2) Xanthoxylum clava-herculis L.
Other common names.—(1) Northern prickly ash, toothache-tree, toothache-bush,
yellowwood, angelica-tree, pellitory-bark, suterberry; (2) southern prickly
ash, toothache-tree, Hercules-club, yellow Hercules, yellowthorn, yellowwood,
yellow prickly ash, prickly yellowwood, West Indian yellowwood, sea-ash,
pepperwood, wild orange.
Habitat and range.—The northern prickly ash is common in woods, thickets,
and along river banks from Virginia, Missouri, and Nebraska northward to
Canada, while the southern prickly ash grows along streams from southern
Virginia to Florida, west to Texas and Arkansas. Both are indigenous to this
country, and are members of the rue family (Rutaceæ).
Descriptions of trees.—The northern prickly ash (Xanthoxylum americanum)
is smaller than the southern, usually 10 to 12 feet and rarely exceeding 25
feet in height, the branches having brown cone-shaped prickles. The leaflets
in this species number from 5 to 11, and are ovate, practically stemless, 1½ to
2 inches long, somewhat pointed at the apex, and with margins wavy toothed
or entire. When young the leaflets are somewhat hairy, but later they become
smooth or retain only a slight hairiness, and are dark green on the upper surface
and paler underneath. The greenish yellow flowers appear before the leaves,
about April or May, but instead of being borne in terminal clusters, like those
of the southern prickly ash, they are produced from the axils of the branches,
many crowded together in small stemless clusters. The seed capsules, containing
one to two shining black seeds, are roundish or somewhat oval and greenish[Pg 32]
red, wrinkled and pitted, and have a
lemon odor. The leaves and flowers
are also aromatic.
The southern prickly ash (Xanthoxylum
clava-herculis), although generally
a taller tree than the northern,
does not attain great height, not exceeding
45 feet, and sometimes it is
only a shrub. The trunk is covered
with a slate-gray bark, and the entire
tree is furnished with sharp spines, or
prickles, those of the trunk smaller
and borne on broad corky excrescences
which remain after the spines have
fallen away (fig. 26), while those
of the branches and leaf stems are
larger, but also have a broad base
(fig. 27).
The leaves consist of 5 to 17 ovate
lance-shaped leaflets 1½ to 3 inches
long, with pointed apex and uneven
sides, smooth and shining on the upper
surface, dull beneath, and margins
wavy toothed (fig. 27). After the
leaves are out—about June—the numerous
small greenish white flowers
appear, borne in large clusters at the
ends of the branches, and not in axillary
clusters like those of the northern prickly ash. The seed capsules are
roundish-obovoid, wrinkled, and contain
roundish-oblong, black, and coarsely
wrinkled seeds (fig. 27).
Description of bark.—The dried bark
of both of these species is official in
the United States Pharmacopœia under
the general name Xanthoxylum. That
of the northern prickly ash occurs in
commerce in small curved or quilled
pieces about 2 inches in length and
sometimes nearly one-eighth of an inch
thick, with a brownish gray, corky outside
layer showing whitish patches and
small black dots, slightly wrinkled, and
a few shining, brown, straight spines,
or prickles, about one-fourth of an inch
in length and with a base about three-fourths
of an inch long. The inner
surface of northern prickly ash bark
is smooth, whitish, or yellowish. It
breaks with a short fracture, showing
the green outer layer and the yellowish
inner layer. The taste is very pungent and somewhat bitter, but there is no odor.
[Pg 33]
Southern prickly ash, as found in the trade, is in large sheets or quilled
pieces, the outside a bluish gray or slate gray, with patches of silvery gray
and numerous large corky excrescences sometimes with the large spines still
attached. In other particulars it resembles the northern prickly ash.
Prices and uses.—The price paid to collectors ranges from about 4 to 9 cents
a pound for the northern prickly ash and from 3 to 8 cents for the southern
prickly ash.
Prickly ash bark has alterative, stimulant, and sialagogue properties, and
is used in rheumatism and for increasing the secretions, for toothache, and
externally as a counterirritant.
Other common names.—Ptelea, wingseed, hop-tree, shrubby trefoil, swamp-dogwood,
three-leaved hop-tree, ague-bark, prairie-grub, quinine-tree, stinking
ash, stinking prairie-bush, sang-tree, pickaway-anise.
Fig. 28.—Wafer-ash (Ptelea trifoliata),
leaves and fruits.
Habitat and range.—This indigenous shrub is found in shady woods from
New York to Florida, west to Minnesota and Texas, occurring in greatest abundance
west of the Alleghanies.
Description of shrub.—The wafer-ash, belonging to the rue family (Rutaceæ),
is a shrub or small tree usually from 6 to 8 feet and not more than 20 feet
in height, with leaves consisting of three
oval leaflets 2 to 5 inches long, dark
green and shining above, paler beneath,
the margins slightly round toothed (fig.
28). The leaves are borne on long stems,
but the leaflets are stemless. The flowers,
which appear in June, are numerous in
terminal compound clusters, greenish
white, and have a disagreeable odor. The
foliage also has an unpleasant odor. The
flowers are followed by large clusters of
winged fruits, each one containing two
seeds. These fruits are flat, rounded in
outline, the seeds surrounded by a membranous,
veined wing (fig. 28). They
have a bitter taste and have been used in
place of hops. The wood of the wafer-ash
is light brown.
Description of bark.—The dried bark of
the root is the part employed in medicine,
and as found in the stores it is in quilled
pieces varying in length from one to several
inches. The thin cuter layer is pale
brown and irregularly ridged and wrinkled. The inner surface is yellowish
white, becoming darker with age. The bark, which is brittle, breaks with a
smooth fracture, has a peculiar odor, and a bitter, pungent, and somewhat acrid
taste.
Collection, prices, and uses.—The bark is taken from the roots. At present
it brings collectors from about 4 to 8 cents a pound.
[Pg 34]
Wafer-ash bark possesses tonic properties, and is employed in fevers. It is
also said to be useful as an anthelmintic.
Black Alder.
Ilex verticillata (L.) A. Gray.
Fig. 29.—Black alder (Ilex verticillata),
fruits.
Synonym.—Prinos verticillata L.
Other common names.—Prinos, winterberry, common winterberry, Virginia
winterberry, false alder, white alder, feverbush.
Habitat and range.—The black alder is native in swamps, moist woods, and
along banks of streams, in Canada and the eastern United States, and westward
to Wisconsin and Missouri.
Description of shrub.—The fruits of the black alder are a familiar sight in
the Christmas markets, the bare branches with the persistent, shining, bright
red berries being much used for decorative
purposes during the holiday season.
Black alder is a shrub usually
from 6 to 8 feet high (sometimes 25
feet), with grayish bark and smooth
twigs. The leaves are oval or oblong
lanceolate, pointed at the apex, about 2
to 3 inches long, and about an inch
in width. They are rather thick and
leathery in texture, dark green and
smoothish on the upper surface, hairy
on the lower surface, especially along
the veins, and sharply toothed. In
autumn the leaves turn black.
The flowers, which appear from about
May to July, are small and white, the
male clusters consisting of 2 to 10
flowers, and the female of only 1 to 3.
The fruits are bright red and shining,
about the size of a pea, clustered
around the stem, and each containing
six seeds (fig. 29). Black alder
belongs to the holly family (Aquifoliaceæ).
Description of bark.—The bark, which
was official in the United States Pharmacopœia
from 1820 to 1890, occurs in
commerce in somewhat quilled strips or
pieces of an ashy brown color outside,
with whitish patches and round black
spots and lines. The inner surface
is greenish or yellowish, and marked
with short lines. The fracture is short, showing a greenish tinge. It has a
faint, peculiar odor and a bitter, astringent taste.
Collection, prices, and uses.—Black alder bark is collected in autumn. The
amount paid to collectors ranges from 2 to about 5 cents a pound.
It is used in medicine as a tonic and astringent. The berries are employed
for similar purposes as the bark.
Wahoo.
Euonymus atropurpureus Jacq.[Pg 35]
Pharmacopœial name.—Euonymus.
Fig. 30.—Wahoo (Euonymus atropurpureus),
leaves and fruits.
Other common names.—Burning-bush, spindle-tree, Indian arrowwood, bursting-heart,
strawberry-tree, strawberry-bush, American spindle-tree, bitter ash,
pegwood.
Habitat and range.—Wahoo is found in woods and thickets from Ontario and
the eastern United States west to Montana.
Description of shrub.—This native shrub or small tree is from 6 to 25 feet
in height, more often reaching only 10 feet, with an ashy gray bark, twigs
somewhat 4 angled, and leaves from 1½ to 5 inches in length and about half
as wide, oval-oblong or elliptical, and long pointed at the apex (fig. 30).
They are rather thin in texture, with
a prominent midrib, more hairy on
the lower surface than above, and the
margins round toothed. The 4-petaled
purple flowers are produced in June,
in loose, slender-stemmed clusters of
from 5 to 15 flowers each, and have 4
wavy, obovate petals. The pale purple
fruits are rather odd looking, consisting
of 4 deeply cleft, flattened
lobes, smooth, each cell containing 1
or 2 seeds (fig. 30). These capsules
open after they ripen, about October,
and disclose the seed surrounded by a
red aril (false coat enveloping the
seed), the bush at this time presenting
a very bright and showy appearance.
The name “wahoo” is applied indiscriminately
to Euonymus atropurpureus
and E. americanus—the latter
a low or trailing bush having crimson
capsules, to which the appellation
“burning-bush” more properly belongs.
Both species, which are members of
the staff-tree family (Celastraceæ),
are used in medicine, although E. atropurpureus alone is recognized in the
United States Pharmacopœia.
Description of bark.—The dried bark of the root of wahoo is official in the
United States Pharmacopœia. It is in quilled pieces of irregular size. The
outside of the bark is furrowed and ridged, of an ashy or light brownish gray
color, showing a few dark patches of soft cork. The inner surface is smooth
and whitish or somewhat pale brownish. The fracture is short, whitish, and
shows fine silky fibers. There is a distinct odor, and the taste is sweetish, bitter,
and somewhat acrid.
Collection, prices, and uses.—Although the bark from the stem is also sometimes
gathered, it is the root bark only which is recognized as official.
The root bark at present brings from 9 to 20 cents a pound. It has tonic,
diuretic, laxative, and antiperiodic properties; it acts on the liver, increasing
the flow of bile, and is also employed in intermittent fevers and in dyspepsia.
False Bittersweet.
Celastrus scandens L.
Other common names.—Climbing bittersweet, shrubby bittersweet,[Pg 36] fevertwig,
fever-twitch, staff-tree, climbing staff-tree, staff-vine, waxwork, Roxbury waxwork,
yellowroot, climbing orange-root, Jacob’s-ladder.
Habitat and range.—This woody vine or climbing shrub is found in woods
and thickets, growing in rich damp soil, from Ontario to Manitoba, south to
North Carolina and New Mexico.
Fig. 31.—False bittersweet (Celastrus scandens),
leaves, flowers, and fruits.
Description of plant.—False bittersweet is a most attractive plant in the fall,
with its brilliant orange-yellow and scarlet seed capsules adding a vivid dash
of color to the fall and winter landscape,
remaining on the vine well into
the cold season.
It is an indigenous woody and
shrubby climber, growing over adjacent
trees or near-by fences. The
leaves are thin and smooth, oval, 2 to
4 inches long, and about half as wide,
pointed at the apex, and with a pointed
or rounded base, the margins furnished
with fine, rounded teeth. The small,
greenish white or greenish yellow
flowers are produced in June, in short
terminal clusters, and the fruit is in
the form of a roundish, 3-celled,
orange-colored capsule, which opens in
autumn, disclosing the scarlet-covered
seed, making a very showy appearance.
This covering is known as an
“aril.” (Fig. 31.)
False bittersweet and true bittersweet,
on account of the similarity of
the common names, are often confused,
but the plants do not resemble each other at all, belonging to entirely different
families and possessing different medicinal properties. False bittersweet belongs
to the staff-tree family (Celastraceæ), while the true bittersweet is a
member of the nightshade family (Solanaceæ).
Description of bark.—The bark of both plant and root is employed, but especially
that of the root. The latter is rather smooth, in small quilled pieces,
the outer surface covered with a thin, papery layer of dark orange-brown and
the inner surface white and finely grooved. The bark from the stem has a
brown-gray color. There is practically no odor, and the taste is bitter, becoming
sweet, then somewhat acrid and rather sickening.
Prices and uses.—The price paid to collectors varies from 5 to 10 cents a
pound.
The bark of false bittersweet possesses alterative, emetic, diaphoretic, and
diuretic properties, and some narcotic action is also attributed to it.
Horse-Chestnut.
Aesculus hippocastanum L.
Other common names.—Hippocastanum, bongay, konker-tree.[Pg 37]
Habitat and range.—This handsome tree is a native of Asia, largely cultivated
in this country as an ornamental shade
tree. In parts of New York and New
Jersey it has escaped from cultivation.
Description of tree.—The horse-chestnut
is a rather large tree, usually
about 40 feet in height, and having
many branches. Sometimes it will
grow as tall as 100 feet. The bark has
a brownish gray color, smoothish on
the younger trees, but fissured and
scaly on the older ones (fig. 32). The
large, shining, resinous leaf buds are a
prominent feature of the winter and
early spring aspect of the tree. The
leaves when mature are smooth, except
perhaps for tufts of hairs on the veins
of the lower surface, but the young
unfolding leaf is quite hairy. The
leaves are large, composed of 5 to 7
leaflets 4 to 8 inches long, pointed and
broadest at the top and narrowing
toward the base, with irregularly
round-toothed margins (fig. 33).
Fig. 33.—Horse-chestnut (Aesculus hippocastanum),
leaves and fruits.
The flower cluster, sometimes 1 foot
in length, is most handsome and showy
in appearance, consisting of a dense,
somewhat pyramidal head of large
white flowers, the petals fringed, wavy,
and spotted with yellow and red, and
having protruding stamens. They appear
about June. The fruit is roundish
and prickly, about an inch or so
in diameter, and contains a large, shining
brown nut (fig. 33). This tree
belongs to the buckeye family (Aesculaceæ).
Other species.—The Ohio buckeye
(Aesculus glabra Willd.), called also
smooth buckeye and fetid buckeye, occurs
in woods and along river banks from Pennsylvania south to Alabama, and
westward to Michigan and the Indian Territory. It is a small tree, native in[Pg 38]
this country, and found in great abundance in Ohio. It gives off a fetid odor,
and has leaves consisting of five ovate leaflets, and small insignificant yellow
flowers. The bark and nut of this species are also employed in medicine, having
properties similar to those of the horse-chestnut, but it is said that their action
is more powerful.
Description of bark.—The horse-chestnut bark of commerce is thin, brownish
gray on the outside, and with a few warty protuberances, leafscars, and
lichens; the inside of the bark is
smooth and whitish, and the whole
breaks with a tough, fibrous fracture,
showing a brownish color within.
The bark has a faint, disagreeable
odor, and a rough, bitter, astringent
taste.
Collection, prices, and uses.—Horse-chestnut
bark is collected in the
autumn, and preference is given to
the bark from the younger branches.
From 1 to 4 cents a pound is the price
paid to collectors.
This bark is used for its “tonic,
astringent, febrifuge, narcotic, and
antiseptic” properties. The nuts are
said to have a narcotic action, and
when powdered, excite sneezing.
The leaves are an old remedy in
the treatment of whooping cough.
Other common names.—Chittem-bark,
sacred bark (a translation of the
Spanish name “cascara sagrada”),
bearberry-tree, bearwood, shittimwood,
Purshiana bark, Persiana bark.
Habitat and range.—This indigenous
tree occurs on the sides and
bottoms of canyons from the Rocky
Mountains to the Pacific Ocean, extending
north into British America.
Description of tree.—The tree furnishing the cascara sagrada of the Pharmacopœia
is of small size, usually from 15 to 20 feet in height (fig. 34), the young
twigs hairy, and the leaves rather thin. It belongs to the buckthorn family
(Rhamnaceæ). The dark green leaves are elliptical in form, from 2 to 6
inches long, and about 1 to 3 inches wide, blunt at the apex or with a short
sharp point, finely saw toothed, rounded or slightly heart shaped at the base,
somewhat hairy on the lower surface, and rather prominently veined (fig. 35).
The rather small, insignificant greenish flowers are produced in umbels, or[Pg 39]
clusters, and are followed by black, ovoid, 3-seeded berries, of a somewhat
insipid taste (fig. 35).
Fig. 35.—Cascara sagrada (Rhamnus purshiana),
leaves and fruits.
Another species.—Several species of Rhamnus occur in the cascara district,
only one of which, however, may be said to enter into competition with
the official cascara, and that is the one which is supposed to have been
first introduced in medicine. It is known as wild coffee or coffee-berry (Rhamnus
californica Esch.). At the present time, however, it is seldom collected,
and then only because it may be mistaken by collectors for the official bark.
According to the nineteenth edition of the United States Dispensatory (1907),
R. californica “is chiefly distinguished from the official species by its leaves
being thin, and when not smooth having a short close pubescence, and the
primary veins of the under surface
not nearly so numerous, straight, or
fine as those of R. purshiana.”
Rhamnus purshiana is abundant in
the northern part of California and
only sparingly found in the southern
portion, whereas exactly the opposite
is true of R. californica. Professor
Rusby (United States Dispensatory,
nineteenth edition, 1907) is of the
opinion that as a further distinguishing
mark in the leaves the channel of
the midrib of R. californica is “altogether
absent, or shallow, or inconspicuous.”
It is very difficult to distinguish
the barks of these two species by
their gross characters alone, but a
microscopical examination will show
structural differences sufficiently distinct
to aid in the recognition of the
barks.[5] In the powdered state the
two species may be distinguished by
means of color tests.[6]
Description of bark.—The cascara
sagrada of commerce occurs in curved
or quilled pieces, the outer surface of
which is reddish brown, and usually covered with growths of light-colored or
grayish lichen, wrinkled and somewhat fissured. The inner surface of the bark
is smooth and marked with very fine lines; at first the inside is yellowish, but
with age it turns a dark brown color. The whole breaks with a short, sharp,
yellowish fracture, and has a somewhat aromatic odor and an exceedingly bitter
taste. The saliva is colored yellow by it, and anything with which the bark
comes in contact for any length of time will also be stained yellow. Cascara
sagrada is official in the United States Pharmacopœia.
Collection, prices, and uses.—The collecting season for cascara opens about[Pg 40]
the end of May or early in June and closes about the end of August, just before
the rainy season sets in, as bark collected after exposure to wet weather is
difficult to cure properly.
After the strips of bark have been removed from the trees, they are generally
strung on wires to dry, care being taken not to expose the inner surface to the
sun, the object being to retain the yellow color, as the action of the sunlight
tends to darken the color, an undesirable result, inasmuch as it lowers the
market price. During the drying process the strips curl up, forming quills, and
when sufficiently dried these are cut or broken up into smaller pieces.
Several years are generally required after collection to properly age the bark
for medicinal purposes, and the United States Pharmacopœia directs that it
should not be used until at least one year after it has been gathered. Some
crude-drug dealers undertake the “aging” of the bark themselves rather than
leave it to collectors.
Many trees are annually destroyed in the collection of cascara sagrada, as
they are usually peeled to such an extent that no new bark is formed. It has
been estimated that one tree furnishes approximately 10 pounds of bark, and
granting a crop of 1,000,000 pounds a year, 100,000 trees are thus annually
destroyed, and the world’s consumption is said to be about 2,000,000 pounds a
year.
The price at present paid to collectors for cascara sagrada varies from 3 to
4½ cents a pound. On account of the fact that cascara sagrada requires several
years’ aging before use, a shortage in the crop is not immediately felt.
Cascara sagrada is a most valuable laxative, differing from other drugs of
this character in that it tones up the entire intestinal tract, making long-continued
dosing or gradually increasing dosage unnecessary.
Rusby, H. H. Cascara Sagrada and Its Allies. Proc. Amer. Pharm. Assoc.,
1890, pp. 203–211. ↩
Sayre, L. E. Frangula and Cascara Barks. Amer. Jour. Pharm., 1897, pp.
126–134. ↩
Cotton.
Gossypium hirsutum L. (“Gossypium herbaceum L.”)
Species.—According to the United States Pharmacopœia, cotton-root bark is
obtained from “Gossypium herbaceum Linne,” or from “other cultivated
species of Gossypium.”
For years the name Gossypium herbaceum has been used in botanical and
other works as applying to American cotton, whereas it is really a name belonging
to an Old World species, known as Levant cotton, cultivated in India and
also in southern Europe, and it is stated that the American species evidently
received the appellation herbaceum as a result of wrong identification by early
American authors, and the assumption that it originated from European seed.[7]
Fig. 36.—Cotton (Gossypium hirsutum),
leaves, flowers, and bolls.
American Upland cotton is the type most commonly cultivated in the South,
from Virginia to Oklahoma and Texas, and this with its hundred or more
recognized horticultural varieties all belong to one species, namely, Gossypium
hirsutum L.,[8] and not to G. herbaceum, and as practically all of the supply of
cotton-root bark of the United States is obtained in the United States, it can
safely be asserted that Gossypium hirsutum L., and not G. herbaceum L., is
the principal source of the bark found in the commerce of our country.
Description of plant.—The cotton plant in flower or with the bursting bolls[Pg 41]
showing the fluffy white fiber is very handsome. It belongs to the mallow
family (Malvaceæ), and ranges from about 1 to 4 feet in height, with a woody
and somewhat branching stem. The leaves of the American Upland cotton,
Gossypium hirsutum, are 5 lobed, the lobes sharply pointed. The flowers when
they first open are creamy white, later on turning purple, and the bracts are
deeply cleft. The 4 to 5 celled cotton bolls are roundish oval, bluntly pointed
at the top, green at first, but turning brown as they mature, bursting open
(September to November in the Southern States), and disclosing the fine
fiber that surrounds and completely hides the seeds, and which forms the
“cotton” of commerce. (Fig. 36.) This cotton is picked from the bolls by
hand, and sent to the cotton gins, where the seed is separated from the lint
by machines known by that name. The seed, aside from its use for planting,
is employed for fertilizing and feeding
purposes, and an oil is also expressed
therefrom.
Description of bark.—Cottonroot bark
is official in the United States Pharmacopœia,
and the article of commerce
consists of long, thin bands, or quills,
flexible, of a brownish yellow color on
the outside, showing faint ridges and
dots or lines. Sometimes the entire
outer corky layer, which is thin, is
wanting, or there are brownish orange
patches where this thin layer has
rubbed off or worn away. The inner
surface of the bark has a whitish,
silky, shining appearance, marked with
fine lines. The long, tough bast fibers
separate into papery layers. There is
no odor, but a faintly acrid and astringent
taste.
Collection, prices, and uses.—The
roots are taken up as late as November
or December, but before frost, washed,
the bark removed with knives, and
carefully dried. The fresh bark is regarded as more reliable than the old bark.
At present cotton-root bark is paid for at the rate of from 3 to 5 cents a pound.
This bark, with its emmenagogue and parturifacient properties, forms a valuable
remedy in the hands of the physician.
The cotton (the hairs of the seed), freed from impurities and deprived of
all fatty matter, is also official in the United States Pharmacopœia.
An oil is expressed from the seed, and various domestic uses have been made
of the seed and also of the flowers and leaves.
Dewey, L. H. The Identity of American Upland Cotton. Science, n. s.,
vol. 19, p. 337. 1904. ↩
Dewey, L. H. Principal Commercial Plant Fibers. Yearbook, U. S. Dept.
of Agriculture, 1903, p. 388. ↩
Dogwood.
Cornus florida L.
Other common names.—Cornus, flowering dogwood, American dogwood, Virginia
dogwood, Florida dogwood, boxwood, New England boxwood, false boxwood,
American cornelian tree, flowering cornel, Florida cornel, white cornel,
Indian arrowwood, nature’s-mistake.
Fig. 37.—Dogwood (Cornus florida), trunk.
Habitat and range.—Dogwood, native in this country, occurs in woods from[Pg 42]
Massachusetts and southern Ontario to Florida, Texas, and Missouri, but grows
most abundantly in the Middle States.
Description of tree.—The dogwood,
which belongs to the dogwood family
(Cornaceæ), is never a large tree, its
greatest height being 40 feet, and more
frequently it occurs as a shrub. It is
one of the most conspicuous trees in
early spring, the naked, leafless
branches supporting numerous large,
showy white flowers, so called. The
white, petal-like parts, however, which
are the most showy portions, are in
reality “bracts,” the “flowers” themselves
being greenish yellow and inconspicuous,
except for these four surrounding
bracts. The four bracts, or
petal-like parts, are white, sometimes
pink tinged, of an inverted oval or
heart shape, with prominent parallel
veins, and peculiarly notched at the
end, as though a piece had been torn
or bitten out. (Fig. 38.)
Fig. 38.—Dogwood (Cornus florida), leaves,
flowers, and fruits.
After the flowers have disappeared the leaves are put forth. These are
generally oval, entire, from 3 to 6 inches in length, the upper surface dark green
and smooth or only minutely hairy,
while the under surface is lighter in
color with slightly hairy veins. The
leaves turn a bright red in autumn
and with the scarlet fruit, or berries,
form a very showy and attractive addition
to the autumnal woods. (Fig. 38.)
The trunk of the dogwood is covered
with a grayish brown, rough, and fissured
bark (fig. 37), and the brown
wood is hard and close grained.
Description of bark.—The root bark
as found in the stores has had the fissured
grayish brown outside layer removed
and consists of short, reddish
brown, curved pieces or chips about
one-eighth of an inch in thickness. The
inside is of a reddish purple color, with
many short, broad grooves. The fracture
is short. It has an astringent,
bitter taste, but practically no odor.
Collection, prices, and uses.—Dogwood
bark is collected from the root in the
fall. It brings from 1 to 3 cents a pound.
It is used in medicine for its astringent, tonic, stimulant, and febrifuge
properties and in the fresh state is said to be emetic. The root bark was official[Pg 43]
in the Pharmacopœia from 1830 to 1890. During the Revolutionary war it
was much employed as a substitute for Peruvian bark or cinchona.
The flowers and fruits have properties similar to those of the bark.
Other species.—The bark of the swamp-dogwood (Cornus amomum Mill.,
syn., C. sericea L.), and the round-leaved dogwood (C. circinata L’Her.) are also
used, being sometimes substituted for the flowering dogwood.
The swamp-dogwood, known also as red osier, silky cornel, rose-willow, blue-berried
cornel, kinnikinnick, female dogwood, red-brush, red-rod, red willow,
and squawbush, is a shrub native in low woods and along streams from Canada
to Florida, west to Texas and the Dakotas.
The bark of this species, which was official from 1820 to 1880, is used like
the flowering dogwood bark, but is said to be less bitter and astringent. It
occurs in thin, quilled pieces, of a purplish brown color on the outside, with
fewer warty excrescences than the following species, but otherwise similar. The
price paid for this bark ranges from 4 to 6 cents a pound.
The round-leaved dogwood or cornel, called also green osier, is an indigenous
shrub growing in shady places in Canada and the northeastern United States.
This bark is also used like that of the flowering dogwood, and was official
from 1820 to 1880. It is said to possess less astringency than the flowering
dogwood, but is more bitter. In commerce it is found in quilled or curved
pieces, of a brownish gray or greenish color outside, with corky warts or marked
with lengthwise lines, the inside
brown. This also brings from about
4 to 6 cents a pound.
Other common names.—Dirca, American
mezereon, leatherwood, leatherbush,
leverwood, leaverwood, rope-bark,
swampwood, wickopy, wickup.
Habitat and range.—This native
shrub is found in wet woods and
thickets from New Brunswick to
Florida, west to Missouri and Minnesota,
but is most common in the
Northern and Eastern States.
Description of shrub.—The moosewood,
a shrub belonging to the mezereon
family (Daphnaceæ), is from 2
to about 6 feet in height, with tough,
fibrous bark, and smooth, yellowish
green twigs. The leaves, which are
hairy when young, are oval with a
blunt apex, rounded or narrowed at
the base; they become smoother as
they mature, and are from 2 to 3
inches long. The flower clusters are
produced from April to May, from
brown-hairy, scaly buds and consist of 2 to 4 yellowish, funnel-shaped flowers
about one-half inch in length, with stamens and style protruding. (Fig. 39.)
The one-seeded fruit, or berry, is small, red, oval oblong, and poisonous.
[Pg 44]
Description of bark.—Moosewood bark occurs in long, stringy, or quilled
pieces, light brown or grayish brown on the outside, slightly wrinkled lengthwise,
marked here and there with
warty excrescences and an occasional
patch of lichen growth, the inside
straw colored and smooth. The bark
is exceedingly tough and fibrous, and
can not be broken. The odor is rather
strong and aromatic, and the taste
pungent and acrid.
Prices and uses.—Moosewood bark
brings from 5 to 10 cents a pound.
It has emetic and laxative properties,
and in decoction is used as a
sudorific and expectorant. The fresh
bark applied externally is very irritating
to the skin, causing redness
and blisters.
White Ash.
Fraxinus americana L.
Fig. 40.—White ash (Fraxinus americana),
trunk.
Synonyms.—Fraxinus alba Marsh;
Fraxinus acuminata Lam.
Other common names.—Ash, American
white ash, cane-ash.
Habitat and range.—The white ash
is native in rich woods, occurring from Nova Scotia to Minnesota, south to
Florida and Texas, but chiefly in the Northern States and Canada.
Fig. 41.—White ash (Fraxinus americana),
leaves and fruits.
Description of tree.—This tree, a
member of the olive family (Oleaceæ),
sometimes attains a height of 120 feet
or so, usually, however, from 60 to 80
feet, the older trees with gray, deeply
furrowed bark (fig. 40), and smooth,
greenish gray branches. The leaf buds
are rust colored, and the white ash
is one of the latest trees to put out
leaves in the spring. The leaves measure
about 12 inches in length and consist
of 5 to 9 leaflets; these are oval
or lance-shaped oblong, the margins
entire, the apex pointed, dark green
above and pale green or silvery beneath,
or sometimes hairy, 3 to 5
inches long, and somewhat less than
half as wide (fig. 41). In autumn
they change to yellow, mottled with
green, and finally turn black. The
small, whitish green flowers are arranged
in loose clusters, appearing from about April to June, and the fruits
which follow are in the form of clustered winged seeds, or “samaras” (fig.
41), which remain on the branches for a long time. Each samara is from[Pg 45]
1 to 2 inches long, narrow, flat, and one seeded. The wood of white ash is
brown, hard, and strong.
Description of bark.—The bark of white ash, as found in the stores, is
whitish or inclined to yellowish brown, about one-fourth of an inch thick or
less, the outside corky layer generally having been removed, but pieces of it
often adhering. The inner surface is smooth and yellow. The fracture is very
fibrous. White-ash bark has a faint aromatic odor and a bitter, acrid taste.
Collection, prices, and uses.—The bark of the root is preferred, although
that from the trunk is also collected; the outer layer is usually removed. The
amount at present paid for white-ash bark ranges from 3 to 5 cents a pound.
White-ash bark has been employed as an antiperiodic in intermittent fever,
and is said to possess tonic and astringent properties. The leaves in infusion
have been used in the treatment of gout and rheumatism.
Another species.—The black ash (Fraxinus nigra Marsh, syn., Fraxinus sambucifolia
Lam.) is also a native, inhabiting swamps and wet woods from Canada
to Virginia and Arkansas. Other names applied to it are hoop-ash, swamp-ash,
water-ash, and basket-ash. Its maximum height is 100 feet, and its bark is
darker gray and less fissured than that of the white ash, and its leaves are
darker green. The leaves are about 16 inches in length, the 7 to 11 stemless
leaflets perhaps a trifle paler green on the lower surface than above, and with
rust-colored hairs on the midrib and veins of the lower surface. These leaflets
are 3 to 6 inches long, narrow, oblong lance shaped, with long-pointed apex,
the margins sharply toothed. The flowers appear from about April to May,
and are followed by clusters of
winged seeds, each flat, winged,
linear-oblong fruit measuring from 1
to 1½ inches in length, narrow, with
the winged portion extending all
around the seed.
The bark, and also the leaves, are
employed in medicine for similar purposes
as those of the white ash. The
bark brings about 3 to 5 cents a
pound.
Fringe-Tree.
Chionanthus virginica L.
Fig. 42.—Fringe-tree (Chionanthus virginica),
leaves and flowers.
Other common names.—American
fringe-tree, white fringe, flowering
ash, poison-ash, graybeard-tree, old-man’s-beard,
shavings, snowdrop-tree,
snow-flower.
Habitat and range.—The fringe-tree
is native in moist thickets and along
streams from Delaware to Florida
and Texas.
Description of shrub.—When in full
flower this shrub or small tree, with
its dense clusters of white, fringelike
flowers, is very attractive, and is often
cultivated for ornament. It is a member of the olive family (Oleaceæ), and is
from 6 to 20 feet in height, the trunk covered with a light-colored bark, the[Pg 46]
leaves oval or oblong, of a leathery texture, and smooth. The flowers, which
from their drooping character give a fringelike appearance, are produced in
May and June, and are borne in dense clusters, each flower having four very
narrow white petals about an inch in length. (Fig. 42.) The fruits which
follow are fleshy, oval, and bluish black, containing a one-seeded nut.
Description of bark.—The bark of the root is the part employed in medicine,
and it is in quilled or curved pieces of unequal size and shape, rather thick,
the outside of a yellowish brown color, somewhat wrinkled, the inside yellowish
brown or dark brown, marked with lengthwise lines. It breaks with a short,
smooth fracture, and has but a faint odor.
Prices and uses.—At present collectors are paid from about 5 to 8 cents a
pound.
It possesses tonic, febrifuge, and laxative properties, and is also said to have
a narcotic action.
Bittersweet.
Solanum dulcamara L.
Fig. 43.—Bittersweet (Solanum dulcamara),
leaves, flowers, and fruits.
Other common names.—Dulcamara, nightshade, climbing nightshade, woody
nightshade, amara-dulcis, fevertwig, violet-bloom, blue bindweed, felonwort,
poison-berry, poison-flower, pushion-berry,
morrel, snakeberry, wolf-grape,
scarlet-berry, tether-devil, dwale,
skawcoo.
Habitat and range.—Bittersweet has
been naturalized from Europe, and occurs
in low, damp grounds and moist
banks of rivers from New Brunswick
to Minnesota, south to New Jersey
and Kansas.
Description of plant.—This climbing,
shrubby perennial is often planted
as an ornamental, and with its clusters
of pretty purplish flowers and branches
of berries ranging in color from green
to yellow and orange, and finally red,
occurring on the vine together, it
makes a rather attractive showing.
Bittersweet has a climbing, somewhat
woody, branched stem, about 2 to 8
feet long, and oval leaves 2 to 4 inches
long, pointed at the apex, and somewhat
heart shaped at the base. Some
of the leaves have one lobe at the base,
some three lobes, while others are entire. The purplish flowers, resembling
those of the potato (to which family, Solanaceæ, this plant belongs), are produced
from about May to September, borne in compound lateral clusters. The
fruits, or berries, which ripen in autumn, are oval, red, and juicy, and contain
numerous whitish seeds. (Fig. 43.) The berries look very tempting, but they
are poisonous, and children have been known to be poisoned by eating them.
Description of medicinal part.—The young branches of bittersweet are the
parts employed in medicine, and were official in the United States Pharmacopœia[Pg 47]
for 1890. As found in commerce, they consist of cylindrical pieces of
varying length and of not more than about one-fifth of an inch in thickness,
with a greenish gray thin bark, marked with lengthwise lines. The woody
portion is light, and the center is sometimes hollow, and sometimes shows a
spongy pith. There is but a faint, somewhat narcotic odor, and the taste at
first is bitter, then sweet—“bittersweet.”
Collection, prices, and uses.—Bittersweet branches are collected when they
are only one or two years old and at a time when the leaves have fallen. The
price paid ranges from 3 to 5 cents a pound.
Bittersweet is used for its diuretic and diaphoretic properties, and, according
to the dose employed, has a quieting, hypnotic influence.
Buttonbush.
Cephalanthus occidentalis L.
Fig. 44.—Buttonbush (Cephalanthus occidentalis),
leaves and flowers.
Other common names.—Buttonwood, buttonwood-shrub, button-tree, swamp-dogwood,
pond-dogwood, swampwood, river-bush, honey-ball, pinball, whiteball,
little snowball, globeflower, mountain-globeflower,
crane-willow, wild licorice,
crouper-bush.
Habitat and range.—The buttonbush
is indigenous to this country, and
flourishes in swamps or damp places
from southern Canada to Florida and
California.
Description of shrub.—This is usually
a widely spreading shrub from 3 to
12 feet in height or occasionally a
small tree, with large, shining, dark
green leaves, and producing from June
to September round heads of creamy
white flowers, the protruding, threadlike
styles with the small, knoblike
stigmas giving them the appearance of
inserted pins, whence the name “pinball.”
The stems are covered with
a rough yellowish bark, while the
smaller branches are smooth and
tinged with red. Some of the leaves
are opposite, others ternate—that is,
arranged in threes—and are ovate or
ovate lance shaped, pointed, smooth, and glossy, with unbroken margins, and
from 3 to 5 inches long. The flower heads, about 1 inch in diameter, consist of
numerous creamy white, stemless flowers, densely crowded together in globular
form, each flower having a funnel-shaped corolla with 4-toothed margin, from
which the slender style with its globular stigma protrudes. (Fig. 44.) The small
dry fruit is inversely pear shaped, splitting open into two to four cells, each containing
one seed. The buttonbush belongs to the madder family (Rubiaceæ).
Description of bark.—The bark occurs commercially in small, curved pieces,
smooth and grayish brown and marked with fine lines if taken from young trees,
furrowed and scaly and of a dull gray color if collected from older trees.
The inner root bark, which is also used, occurs in shorter pieces, and is of a
reddish brown color. The inner surface of the bark is whitish and smooth,[Pg 48]
becoming a pale rust color when it is no longer fresh. It breaks with a tough,
fibrous fracture, and has no odor, but a bitter and somewhat astringent taste.
Collection, prices, and uses.—The bark is collected from both stem and root.
It brings about 7 cents a pound, but at present there seems to be no very great
demand for it.
Buttonbush bark is used in fevers, and the inner bark is employed in coughs
and as a diuretic.
Cramp-Bark Tree.
Viburnum opulus L.
Pharmacopœial name.—Viburnum opulus.
Other common names.—Cranberry-tree, high-bush cranberry, wild guelder-rose,
gueldres-rose, cherry-wood, dog rowan-tree, whitten-tree, red elder, rose-elder,
marsh-elder, water-elder, white elder, gadrise, gaiter-tree, gatten, love-rose,
May-rose, pincushion-tree, squawbush, witch-hobble, witch-hopple.
Habitat and range.—This native shrub occurs in low rich woods and borders
of fields from New Jersey, Michigan, and Oregon, northward.
Description of shrub.—The whitish flower heads of this species are borne on
stems about 1 inch in length, and measure from 3 to 4 inches across; the
flowers on the outside are large, sometimes an inch in diameter, and sterile
(without stamens or pistils), while those on the inside of the flower cluster
are considerably smaller and fertile. The cultivated variety of this species, the
well-known ornamental “snowball” of the gardens, has all of its flowers
sterile.
The cramp-bark tree grows from 8 to 10 feet high, with branches generally
erect and smooth, and broadly oval, 3-lobed leaves. The leaves are usually
smooth on the upper surface, but with the veins on the lower surface somewhat
hairy, and the margins coarsely toothed. The showy white flower clusters
appear about June. The red fruits, which ripen rather late in the season and
remain on the bush for some time, are roundish or oval, sour, and contain a
round, flat stone. As may be inferred from some of the common names applied to
this shrub, the fruit in taste and appearance bears some resemblance to the
cranberry. The cramp-bark tree is a member of the honeysuckle family
(Caprifoliaceæ).
Description of bark.—Cramp bark, official in the United States Pharmacopœia
under the name “Viburnum opulus,” is in transversely curved pieces, sometimes
quilled, one-sixteenth of an inch or less in thickness, the outside grayish
brown surface marked with lengthwise wrinkles and brown lenticels, and the
inside pale brown, showing lengthwise lines. It breaks with a tough, fibrous
fracture. There is practically no odor, and the taste is astringent and bitter.
Collection, prices, and uses.—Cramp bark is collected in the fall, and at
present is paid for at the rate of about 2 to 4½ cents a pound.
Cramp bark, as this name indicates, is of use as an antispasmodic, and is
also said to possess nervine, tonic, and astringent properties.
Black Haw.
Viburnum prunifolium L.
Pharmacopœial name.—Viburnum prunifolium.
Other common names.—Sloe, sloe-leaved viburnum, stagbush.
Habitat and range.—The black haw occurs in dry woods and thickets and on
rocky hillsides from Connecticut to Florida, west to Michigan and Texas, but
is found in greatest abundance in the South. It is indigenous to this country.
Description of shrub.—This shrub or small tree, from 10 to about 20 feet[Pg 49] in
height, has rather stout, spreading branches. The winter buds are small, short
pointed, smooth, or sometimes with reddish hairs. Black haw has broadly oval
or roundish-oval leaves, blunt or somewhat pointed at the top, 1 to 3 inches
long, with a narrow or rounded base; they are nearly smooth, bright green, and
have a finely toothed margin. The numerous stemless flower clusters are from
2 to 4 inches broad, composed of numerous white flowers appearing from April
to June. The fruit, which is sweet and edible, is oval or somewhat roundish,
about half an inch long, bluish black, covered with a bloom, and ripens in
early autumn. It contains a somewhat flattened stone. (Fig. 45.)
Fig. 45.—Black haw and nanny-berry (Viburnum
prunifolium and V. lentago), leaves
and flowers.
Description of bark.—The bark of the stem was formerly official, but now the
dried bark of the root is the part prescribed by the United States Pharmacopœia,
Eighth Decennial Revision. It
is in irregular or quilled pieces, of a
dull brown color on the outer surface,
somewhat scaly and with shallow furrows;
the inner surface reddish brown,
and the whole breaking with a weak,
short, uneven fracture. There is a
faint peculiar odor, and a very bitter,
somewhat astringent taste.
Collection, prices, and uses.—Black
haw bark is collected in autumn. The
present prices to collectors are from 3
to 8 cents a pound.
This bark has nervine, antispasmodic,
tonic, and diuretic properties.
Another species.—The sweet viburnum
(Viburnum lentago L.), known
also as nanny-berry and sheepberry, is
a species which is collected with prunifolium,
and, with it, considered official.
It grows in rich soil from Canada
south to Georgia and Kansas.
Sweet viburnum is an indigenous
shrub or small tree, sometimes as tall
as 30 feet, and somewhat resembling prunifolium. The winter buds, however,
are longer pointed and smooth, the leaves have longer slender stems and are oval,
long pointed at the apex, and generally rounded at the base. They are from
2 to 4 inches long, smooth on both surfaces, and sharply toothed. The stemless
flower clusters, 2 to 5 inches broad, appear about May, followed by the oval,
bluish black, bloom-covered fruit, which matures about October, becoming sweet
and edible. (Fig. 45.) The fruit sometimes remains on the shrub until the following
spring. It contains a very flat, round or oval seed. Like the cramp-bark
tree, the black haw and sweet viburnum both belong to the honeysuckle
family (Caprifoliaceæ).
The bark of the sweet viburnum is also collected in autumn, and is used like
prunifolium.
[Pg 51]
Index.
Page.
Aesculus glabra and A. hippocastanum. See Chestnut, horse
The scientific and technical publications of the Bureau of Plant Industry, which was
organized July 1, 1901, are issued in a single series of bulletins, a list of which follows.
Attention is directed to the fact that the publications in this series are not for general
distribution. The Superintendent of Documents, Government Printing Office, Washington,
D. C., is authorized by law to sell them at cost, and to him all applications for these
bulletins should be made, accompanied by a postal money order for the required amount
or by cash. Numbers omitted from this list can not be furnished.
The Relation of Lime and Magnesia to Plant Growth. 1901. Price, 10 cents.
Spermatogenesis and Fecundation of Zamia. 1901. Price, 20 cents.
Macaroni Wheats. 1901. Price, 20 cents.
Range Improvement in Arizona. 1901. Price, 10 cents.
A List of American Varieties of Peppers. 1902. Price, 10 cents.
The Algerian Durum Wheats. 1902. Price, 15 cents.
The North American Species of Spartina. 1902. Price, 10 cents.
Records of Seed Distribution, etc. 1902. Price, 10 cents.
Johnson Grass. 1902. Price, 10 cents.
Stock Ranges of Northwestern California. 1902. Price, 15 cents.
Range Improvement in Central Texas. 1902. Price, 10 cents.
Forage Conditions on the Border of the Great Basin. 1902. Price, 15 cents.
Some Diseases of the Cowpea. 1902. Price, 10 cents.
Manufacture of Semolina and Macaroni. 1902. Price, 15 cents.
Injurious Effects of Premature Pollination. 1902. Price, 10 cents.
Unfermented Grape Must. 1902. Price, 10 cents.
Miscellaneous Papers. 1903. Price, 15 cents.
Letters on Agriculture in the West Indies, Spain, etc. 1902. Price, 15 cents.
The Effect of Black-Rot on Turnips. 1903. Price, 15 cents.
Cultivated Forage Crops of the Northwestern States. 1902. Price, 10 cents.
A Disease of the White Ash. 1903. Price, 10 cents.
North American Species of Leptochloa. 1903. Price, 15 cents.
Peach, Apricot, and Prune Kernels as By-Products of the Fruit Industry of the United States. 1908. Price, 5 cents.
The Influence of a Mixture of Soluble Salts, Principally Sodium Chlorid, upon the Leaf Structure and Transpiration of Wheat, Oats, and Barley. 1908. Price, 5 cents.
Orchard Fruits in the Piedmont and Blue Ridge Regions of Virginia and the South Atlantic States. 1908. Price, 20 cents.
Methods and Causes of Evolution. 1908. Price, 10 cents.
The Production of Cigar-Wrapper Tobacco under Shade in the Connecticut Valley. 1908. Price, 15 cents.
Transcriber’s Notes
A word seems to be missing between “considerable”
and “of the woody portion” in
“Description of wood and bark”
section of the “Ironwood” entry. Nothing was added to
it since it is not clear what word is missing.
Clear typos and wrong punctuation were corrected.
Inconsistent hyphenation has been corrected.
There is a list of works divided in two parts in the original publication, with one part at the beginning and another at the end. They have been merged and moved to the end in this edition.
Footnotes have been renumbered and moved to the end of their sections. The character ↩ was used to denote a return link in the HTML version.
The original entry for Magnolia umbrella has both a “(2)” and a “(3)” item. They have been renumbered to “(1)” and “(2),” respectively.
*** END OF THE PROJECT GUTENBERG EBOOK AMERICAN MEDICINAL BARKS ***
Updated editions will replace the previous one—the old editions will
be renamed.
Creating the works from print editions not protected by U.S. copyright
law means that no one owns a United States copyright in these works,
so the Foundation (and you!) can copy and distribute it in the United
States without permission and without paying copyright
royalties. Special rules, set forth in the General Terms of Use part
of this license, apply to copying and distributing Project
Gutenberg™ electronic works to protect the PROJECT GUTENBERG™
concept and trademark. Project Gutenberg is a registered trademark,
and may not be used if you charge for an eBook, except by following
the terms of the trademark license, including paying royalties for use
of the Project Gutenberg trademark. If you do not charge anything for
copies of this eBook, complying with the trademark license is very
easy. You may use this eBook for nearly any purpose such as creation
of derivative works, reports, performances and research. Project
Gutenberg eBooks may be modified and printed and given away—you may
do practically ANYTHING in the United States with eBooks not protected
by U.S. copyright law. Redistribution is subject to the trademark
license, especially commercial redistribution.
START: FULL LICENSE
THE FULL PROJECT GUTENBERG LICENSE
PLEASE READ THIS BEFORE YOU DISTRIBUTE OR USE THIS WORK
To protect the Project Gutenberg™ mission of promoting the free
distribution of electronic works, by using or distributing this work
(or any other work associated in any way with the phrase “Project
Gutenberg”), you agree to comply with all the terms of the Full
Project Gutenberg™ License available with this file or online at
www.gutenberg.org/license.
Section 1. General Terms of Use and Redistributing Project Gutenberg™
electronic works
1.A. By reading or using any part of this Project Gutenberg™
electronic work, you indicate that you have read, understand, agree to
and accept all the terms of this license and intellectual property
(trademark/copyright) agreement. If you do not agree to abide by all
the terms of this agreement, you must cease using and return or
destroy all copies of Project Gutenberg™ electronic works in your
possession. If you paid a fee for obtaining a copy of or access to a
Project Gutenberg™ electronic work and you do not agree to be bound
by the terms of this agreement, you may obtain a refund from the person
or entity to whom you paid the fee as set forth in paragraph 1.E.8.
1.B. “Project Gutenberg” is a registered trademark. It may only be
used on or associated in any way with an electronic work by people who
agree to be bound by the terms of this agreement. There are a few
things that you can do with most Project Gutenberg™ electronic works
even without complying with the full terms of this agreement. See
paragraph 1.C below. There are a lot of things you can do with Project
Gutenberg™ electronic works if you follow the terms of this
agreement and help preserve free future access to Project Gutenberg™
electronic works. See paragraph 1.E below.
1.C. The Project Gutenberg Literary Archive Foundation (“the
Foundation” or PGLAF), owns a compilation copyright in the collection
of Project Gutenberg™ electronic works. Nearly all the individual
works in the collection are in the public domain in the United
States. If an individual work is unprotected by copyright law in the
United States and you are located in the United States, we do not
claim a right to prevent you from copying, distributing, performing,
displaying or creating derivative works based on the work as long as
all references to Project Gutenberg are removed. Of course, we hope
that you will support the Project Gutenberg™ mission of promoting
free access to electronic works by freely sharing Project Gutenberg™
works in compliance with the terms of this agreement for keeping the
Project Gutenberg™ name associated with the work. You can easily
comply with the terms of this agreement by keeping this work in the
same format with its attached full Project Gutenberg™ License when
you share it without charge with others.
1.D. The copyright laws of the place where you are located also govern
what you can do with this work. Copyright laws in most countries are
in a constant state of change. If you are outside the United States,
check the laws of your country in addition to the terms of this
agreement before downloading, copying, displaying, performing,
distributing or creating derivative works based on this work or any
other Project Gutenberg™ work. The Foundation makes no
representations concerning the copyright status of any work in any
country other than the United States.
1.E. Unless you have removed all references to Project Gutenberg:
1.E.1. The following sentence, with active links to, or other
immediate access to, the full Project Gutenberg™ License must appear
prominently whenever any copy of a Project Gutenberg™ work (any work
on which the phrase “Project Gutenberg” appears, or with which the
phrase “Project Gutenberg” is associated) is accessed, displayed,
performed, viewed, copied or distributed:
This eBook is for the use of anyone anywhere in the United States and most
other parts of the world at no cost and with almost no restrictions
whatsoever. You may copy it, give it away or re-use it under the terms
of the Project Gutenberg License included with this eBook or online
at www.gutenberg.org. If you
are not located in the United States, you will have to check the laws
of the country where you are located before using this eBook.
1.E.2. If an individual Project Gutenberg™ electronic work is
derived from texts not protected by U.S. copyright law (does not
contain a notice indicating that it is posted with permission of the
copyright holder), the work can be copied and distributed to anyone in
the United States without paying any fees or charges. If you are
redistributing or providing access to a work with the phrase “Project
Gutenberg” associated with or appearing on the work, you must comply
either with the requirements of paragraphs 1.E.1 through 1.E.7 or
obtain permission for the use of the work and the Project Gutenberg™
trademark as set forth in paragraphs 1.E.8 or 1.E.9.
1.E.3. If an individual Project Gutenberg™ electronic work is posted
with the permission of the copyright holder, your use and distribution
must comply with both paragraphs 1.E.1 through 1.E.7 and any
additional terms imposed by the copyright holder. Additional terms
will be linked to the Project Gutenberg™ License for all works
posted with the permission of the copyright holder found at the
beginning of this work.
1.E.4. Do not unlink or detach or remove the full Project Gutenberg™
License terms from this work, or any files containing a part of this
work or any other work associated with Project Gutenberg™.
1.E.5. Do not copy, display, perform, distribute or redistribute this
electronic work, or any part of this electronic work, without
prominently displaying the sentence set forth in paragraph 1.E.1 with
active links or immediate access to the full terms of the Project
Gutenberg™ License.
1.E.6. You may convert to and distribute this work in any binary,
compressed, marked up, nonproprietary or proprietary form, including
any word processing or hypertext form. However, if you provide access
to or distribute copies of a Project Gutenberg™ work in a format
other than “Plain Vanilla ASCII” or other format used in the official
version posted on the official Project Gutenberg™ website
(www.gutenberg.org), you must, at no additional cost, fee or expense
to the user, provide a copy, a means of exporting a copy, or a means
of obtaining a copy upon request, of the work in its original “Plain
Vanilla ASCII” or other form. Any alternate format must include the
full Project Gutenberg™ License as specified in paragraph 1.E.1.
1.E.7. Do not charge a fee for access to, viewing, displaying,
performing, copying or distributing any Project Gutenberg™ works
unless you comply with paragraph 1.E.8 or 1.E.9.
1.E.8. You may charge a reasonable fee for copies of or providing
access to or distributing Project Gutenberg™ electronic works
provided that:
• You pay a royalty fee of 20% of the gross profits you derive from
the use of Project Gutenberg™ works calculated using the method
you already use to calculate your applicable taxes. The fee is owed
to the owner of the Project Gutenberg™ trademark, but he has
agreed to donate royalties under this paragraph to the Project
Gutenberg Literary Archive Foundation. Royalty payments must be paid
within 60 days following each date on which you prepare (or are
legally required to prepare) your periodic tax returns. Royalty
payments should be clearly marked as such and sent to the Project
Gutenberg Literary Archive Foundation at the address specified in
Section 4, “Information about donations to the Project Gutenberg
Literary Archive Foundation.”
• You provide a full refund of any money paid by a user who notifies
you in writing (or by e-mail) within 30 days of receipt that s/he
does not agree to the terms of the full Project Gutenberg™
License. You must require such a user to return or destroy all
copies of the works possessed in a physical medium and discontinue
all use of and all access to other copies of Project Gutenberg™
works.
• You provide, in accordance with paragraph 1.F.3, a full refund of
any money paid for a work or a replacement copy, if a defect in the
electronic work is discovered and reported to you within 90 days of
receipt of the work.
• You comply with all other terms of this agreement for free
distribution of Project Gutenberg™ works.
1.E.9. If you wish to charge a fee or distribute a Project
Gutenberg™ electronic work or group of works on different terms than
are set forth in this agreement, you must obtain permission in writing
from the Project Gutenberg Literary Archive Foundation, the manager of
the Project Gutenberg™ trademark. Contact the Foundation as set
forth in Section 3 below.
1.F.
1.F.1. Project Gutenberg volunteers and employees expend considerable
effort to identify, do copyright research on, transcribe and proofread
works not protected by U.S. copyright law in creating the Project
Gutenberg™ collection. Despite these efforts, Project Gutenberg™
electronic works, and the medium on which they may be stored, may
contain “Defects,” such as, but not limited to, incomplete, inaccurate
or corrupt data, transcription errors, a copyright or other
intellectual property infringement, a defective or damaged disk or
other medium, a computer virus, or computer codes that damage or
cannot be read by your equipment.
1.F.2. LIMITED WARRANTY, DISCLAIMER OF DAMAGES - Except for the “Right
of Replacement or Refund” described in paragraph 1.F.3, the Project
Gutenberg Literary Archive Foundation, the owner of the Project
Gutenberg™ trademark, and any other party distributing a Project
Gutenberg™ electronic work under this agreement, disclaim all
liability to you for damages, costs and expenses, including legal
fees. YOU AGREE THAT YOU HAVE NO REMEDIES FOR NEGLIGENCE, STRICT
LIABILITY, BREACH OF WARRANTY OR BREACH OF CONTRACT EXCEPT THOSE
PROVIDED IN PARAGRAPH 1.F.3. YOU AGREE THAT THE FOUNDATION, THE
TRADEMARK OWNER, AND ANY DISTRIBUTOR UNDER THIS AGREEMENT WILL NOT BE
LIABLE TO YOU FOR ACTUAL, DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE OR
INCIDENTAL DAMAGES EVEN IF YOU GIVE NOTICE OF THE POSSIBILITY OF SUCH
DAMAGE.
1.F.3. LIMITED RIGHT OF REPLACEMENT OR REFUND - If you discover a
defect in this electronic work within 90 days of receiving it, you can
receive a refund of the money (if any) you paid for it by sending a
written explanation to the person you received the work from. If you
received the work on a physical medium, you must return the medium
with your written explanation. The person or entity that provided you
with the defective work may elect to provide a replacement copy in
lieu of a refund. If you received the work electronically, the person
or entity providing it to you may choose to give you a second
opportunity to receive the work electronically in lieu of a refund. If
the second copy is also defective, you may demand a refund in writing
without further opportunities to fix the problem.
1.F.4. Except for the limited right of replacement or refund set forth
in paragraph 1.F.3, this work is provided to you ‘AS-IS’, WITH NO
OTHER WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITED TO WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PURPOSE.
1.F.5. Some states do not allow disclaimers of certain implied
warranties or the exclusion or limitation of certain types of
damages. If any disclaimer or limitation set forth in this agreement
violates the law of the state applicable to this agreement, the
agreement shall be interpreted to make the maximum disclaimer or
limitation permitted by the applicable state law. The invalidity or
unenforceability of any provision of this agreement shall not void the
remaining provisions.
1.F.6. INDEMNITY - You agree to indemnify and hold the Foundation, the
trademark owner, any agent or employee of the Foundation, anyone
providing copies of Project Gutenberg™ electronic works in
accordance with this agreement, and any volunteers associated with the
production, promotion and distribution of Project Gutenberg™
electronic works, harmless from all liability, costs and expenses,
including legal fees, that arise directly or indirectly from any of
the following which you do or cause to occur: (a) distribution of this
or any Project Gutenberg™ work, (b) alteration, modification, or
additions or deletions to any Project Gutenberg™ work, and (c) any
Defect you cause.
Section 2. Information about the Mission of Project Gutenberg™
Project Gutenberg™ is synonymous with the free distribution of
electronic works in formats readable by the widest variety of
computers including obsolete, old, middle-aged and new computers. It
exists because of the efforts of hundreds of volunteers and donations
from people in all walks of life.
Volunteers and financial support to provide volunteers with the
assistance they need are critical to reaching Project Gutenberg™’s
goals and ensuring that the Project Gutenberg™ collection will
remain freely available for generations to come. In 2001, the Project
Gutenberg Literary Archive Foundation was created to provide a secure
and permanent future for Project Gutenberg™ and future
generations. To learn more about the Project Gutenberg Literary
Archive Foundation and how your efforts and donations can help, see
Sections 3 and 4 and the Foundation information page at www.gutenberg.org.
Section 3. Information about the Project Gutenberg Literary Archive Foundation
The Project Gutenberg Literary Archive Foundation is a non-profit
501(c)(3) educational corporation organized under the laws of the
state of Mississippi and granted tax exempt status by the Internal
Revenue Service. The Foundation’s EIN or federal tax identification
number is 64-6221541. Contributions to the Project Gutenberg Literary
Archive Foundation are tax deductible to the full extent permitted by
U.S. federal laws and your state’s laws.
The Foundation’s business office is located at 809 North 1500 West,
Salt Lake City, UT 84116, (801) 596-1887. Email contact links and up
to date contact information can be found at the Foundation’s website
and official page at www.gutenberg.org/contact
Section 4. Information about Donations to the Project Gutenberg
Literary Archive Foundation
Project Gutenberg™ depends upon and cannot survive without widespread
public support and donations to carry out its mission of
increasing the number of public domain and licensed works that can be
freely distributed in machine-readable form accessible by the widest
array of equipment including outdated equipment. Many small donations
($1 to $5,000) are particularly important to maintaining tax exempt
status with the IRS.
The Foundation is committed to complying with the laws regulating
charities and charitable donations in all 50 states of the United
States. Compliance requirements are not uniform and it takes a
considerable effort, much paperwork and many fees to meet and keep up
with these requirements. We do not solicit donations in locations
where we have not received written confirmation of compliance. To SEND
DONATIONS or determine the status of compliance for any particular state
visit www.gutenberg.org/donate.
While we cannot and do not solicit contributions from states where we
have not met the solicitation requirements, we know of no prohibition
against accepting unsolicited donations from donors in such states who
approach us with offers to donate.
International donations are gratefully accepted, but we cannot make
any statements concerning tax treatment of donations received from
outside the United States. U.S. laws alone swamp our small staff.
Please check the Project Gutenberg web pages for current donation
methods and addresses. Donations are accepted in a number of other
ways including checks, online payments and credit card donations. To
donate, please visit: www.gutenberg.org/donate.
Section 5. General Information About Project Gutenberg™ electronic works
Professor Michael S. Hart was the originator of the Project
Gutenberg™ concept of a library of electronic works that could be
freely shared with anyone. For forty years, he produced and
distributed Project Gutenberg™ eBooks with only a loose network of
volunteer support.
Project Gutenberg™ eBooks are often created from several printed
editions, all of which are confirmed as not protected by copyright in
the U.S. unless a copyright notice is included. Thus, we do not
necessarily keep eBooks in compliance with any particular paper
edition.
Most people start at our website which has the main PG search
facility: www.gutenberg.org.
This website includes information about Project Gutenberg™,
including how to make donations to the Project Gutenberg Literary
Archive Foundation, how to help produce our new eBooks, and how to
subscribe to our email newsletter to hear about new eBooks.