. Textbook of botany. Botany. 34° TEXTBOOK OF BOTANY to the same family, have also been found to be poisonous to livestock if eaten in sufficient quantities. Another poisonous member of the pulse family is the rattlebox. Still another western poisonous plant that causes important losses, espe- cially of sheep, is the death camas (Zygadenus). The leaves of the black cherry are poisonous when partially wilted, and cattle are sometimes killed by eating the leaves from cut branches. Some deaths have been reported, too, of children who ate the kernels of black cherry seeds, or who swallowed the fru
. Textbook of botany. Botany. 34° TEXTBOOK OF BOTANY to the same family, have also been found to be poisonous to livestock if eaten in sufficient quantities. Another poisonous member of the pulse family is the rattlebox. Still another western poisonous plant that causes important losses, espe- cially of sheep, is the death camas (Zygadenus). The leaves of the black cherry are poisonous when partially wilted, and cattle are sometimes killed by eating the leaves from cut branches. Some deaths have been reported, too, of children who ate the kernels of black cherry seeds, or who swallowed the fruits whole. The partiaJly wilted leaves of some other cherries and the kernels of many, perhaps of all, cherries and plums, are poisonous. The sneezeweed, a com- posite, which when powdered is used medicinally to produce sneezing, has been known to kill sheep, cattle, and horses which, unfamiliar with the plant, hav'e eaten it. As a rule, however, animals avoid the plant. Com cockle, American false hellebore, the buckeyes and the horse-chestnut, water hemlock, poison hemlock, and the broad-leaf laurel, already referred to as poisonous to human beings, are also dangerous to animals. 356. Plants Poisonou§ to the Touch.—Well-known representa- tives of this class are poison ivy, poison oak, and the poison sumach (poison elder). All these belong to the same genus (Rhus) as the common sumachs. Their irritat- ing effects upon the skin are due to an oil which is found in all parts of the plant; it is soluble in alcohol and is destroyed by an alcoholic solution of sugar of lead. Some of the primroses produce a somewhat similar irritation qf the skin in many persons. The milky juices of the caper spurge, snow-on-the-mountain, and other spurges. 191. — The poison ivy. After Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the o
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