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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    and with short unicellular, alternate branches; trachea spiral annular, or with bordered pores; sclerenchymatous fibers thin- walled, non-ligmfied, having few, simple, oblique pores. Constituents.—Volatile oil; a bitter, crystalline glucoside, eupa- tonn; resin; a crystalline wax; a glucosidal coloring principle related to tannin but crystallizing in small yellow needles, and giving an orange-red precipitate with lead acetate solution; a glucosidal tannin, which is colored deep green with ferric chloride and gives a yellow precipitate with lead acetate solution; gallic acid; ash 7 5 to 9.9 per cent. Allied Plants.—Purple boneset or Joe-pye weed (Eupatorium purpureum) a common herb (Fig. 370) in low grounds in eastern and central North America, is a tall stout herb, with oblong-lanceolate leaves 3 to 6 m a whorl and light purplish-red flowers in dense corymbs. Purple boneset contains a volatile oil, 0.07 per cent- a yellow crystalline principle euparin, which somewhat resembles quercitrm; resin, 0.25 per cent; calcium oxalate, 1.82 per cent; and aS. ’ 11PCT C6nt' Dog‘fennel (E- feniculaceum), a perennial herb, wit alternate, 1- to 2-pinnately parted leaves and white flowers which is common in the Southern States, yields a volatile oil which contains considerable phellandrene. The root of Eupatorium perfoliatum contains about 5 per cent of mulm. ^ Literature. Holm, Merck’s Report, 1908, p. 326. Absinthium.—Common Wormwood or Absinth—The leaves and flowering tops of Artemisia Absinthium (Fam. Composit*), a shrubby perennial herb, growing in waste places in the northern United States and Canada. It is cultivated in Europe, northern Africa, New York, Michigan, Nebraska and Wisconsin. The vola- tile oil is used m the preparation of the French Absinthe. The leaves and flowering tops are gathered during the summer or early fall carefully dried and preserved. Description -Leaves from 5 to 12 cm. in length, 2- to 3-pin- nately divided, the lobes being obovate or lanceolate, entire or toothed, the lower being long petiolate; heads greenish-yellow, hemispherical or ovoid and arranged in panicles, the involucral scales being in 2 series, the inner linear and having membranous margins, the florets are all tubular, the outer ones sometimes being neutral. The herb is aromatic and very bitter. Inner Structure.—Non-glandular hairs of 2 kinds: (a) uni- cellular, very long; (b), T-hairs consisting of a 1- to 4-celled stalk earing a single horizontal cell at the summit; glandular hairs having