A Manual of Poisonous Plants, Chiefly of Eastern North America, With Brief Notes On Economic And Medicinal Plants, And Numerous Illustrations
The book A Manual of Poisonous Plants, Chiefly of Eastern North America, With Brief Notes On Economic And Medicinal Plants, And Numerous Illustrations was written by author L H Louis Hermann Pammel Here you can read free online of A Manual of Poisonous Plants, Chiefly of Eastern North America, With Brief Notes On Economic And Medicinal Plants, And Numerous Illustrations book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Manual of Poisonous Plants, Chiefly of Eastern North America, With Brief Notes On Economic And Medicinal Plants, And Numerous Illustrations a good or bad book?
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emodi), produce the same principle podophyllotoxin Cj^H^^^Og a strong purgative and also the so-called podophyllin which consists of a resin. The podophyllotoxin occurs in the Indian plant from 9-12% and in the American plant- from 4-5%. DISTRIBUTION OF CHEMICAL SUBSTANCES. The same chemical sub- stance is frequently found in plants that are not closely related. For instance, Edward Kremers and many other pharmaceutical chemists have found the essential oils in widely separated families, and Gr...eshoff states that a leaf of Five-finger {Potentilla davurica of China) which is closely related to our shrubby Cinquefoil (P. fruticosa) produces a powerful odor of roses. Ger- anoil occurs, for instance, in the young foliage of willow and many other plants. The substance berberin is found in a large number of plants like the Bar- berry, the Mandrake, Twin Leaf {Jeffersonia diphylla), Meadow Rue (Thal- ictrum flavum), Toddalea aculeata, Hydrastis canadensis, Argemone mexicana, etc. 1 Bull. U. S.
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