Scientific and applied pharmacognosy : intended for the use of students in pharmacy, as a hand book for pharmacists, and as a reference book for fook and drug analysts and pharmacologists / by Henry Kraemer ... Illustrated with over 300 plates comprising about 1000 figures.

  • Kraemer, Henry, 1868-1924.
Date:
1920
Catalogue details

Licence: In copyright

Credit: Scientific and applied pharmacognosy : intended for the use of students in pharmacy, as a hand book for pharmacists, and as a reference book for fook and drug analysts and pharmacologists / by Henry Kraemer ... Illustrated with over 300 plates comprising about 1000 figures. Source: Wellcome Collection.

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    of calamus; choline (trimethyl-oxyethyl ammonium hydrate), a strong, non-poisonous base, and formerly known as calamine; a soft resin about 2.3 per cent; tannin; mucilage; starch and calcium oxalate. COMMELINACEiE, OR SPIDERWORT FAMILY Annual or perennial herbs, mostly indigenous to the tropics and represented by nearly 400 species. It is represented in the United States by Tradescantia and Commelina, some of the species of the latter being used in medicine. Commelina.—Day Flower.—The entire plant of Commelina communis, a perennial herb growing in the United States south of New York and west to Kansas and Texas. The stem is procumbent or creeping and the plant produces roots at the nodes rather freely. The leaves are broadly lanceolate, being acute at the summit and contracted at the base into sheathing petioles. The floral leaves are large, heart-shaped, clasping bracts enclosing 2 to 4 flowers arranged in cymes. The fruit is a 3-locular capsule containing 1 or 2 seeds in each locule. The seeds are oblong, about 2 mm. in length and retic- ulated. For illustrations of morphology see Fig. 27. Commelina probably contains a small amount of an alkaloid and a glucoside; mucilage 13 per cent and starch 0.5 per cent. The drug has hemostatic properties. Several species of Commelina growing in Mexico are also used for the same purpose. Literature.—Herrera, Amer. Jour. Pharm., 1897, p. 290; Preston, Ibid., 1898, p. 321. LILIACEiE, or lily family They are mostly perennial herbs having bulbs or tubers and rarely fibrous roots. There are about 2500 species and are found in nearly all portions of the globe. A few are used in medicine, some furnish food products, but their chief interest is in their ornamental uses. The leaves are for the most part parallel-veined and the flowers are regular and with 6 stamens. There are no striking anatomical sclerenchymatous fibers. G, a leptocentric mestome strand from the pith of the rhizome showing leptome (L) tracheae or vessels (II) and sclerenchy- matous fibers (St). II, transverse section of root stele showing endodermis (End); pericambium (P); a 7-rayed hadrome (H) consisting of large tracheae surrounded by sclerenchymatous fibers; leptome (L) only indicated by V- shaped open spaces. I, transverse section of part of root stele showing tangential cell division on the inner flank of the leptome; letters as in H.— After Holm.