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.

    717/786 (page 681)
    above the adjoining epidermis and without subsidiary cells; the non-glandular hairs are of 2 kinds: (a), uniseriate and filiform; . (■b), uniseriate, thick-walled, pointed and more or less curved; glandular hairs short, and capitate; the mid-vein is composed of 3 separate mestome strands, surrounded by large thin-walled water- storage tissue. Resin canals are formed in the vicinity of the endo- dermis in both the stem and leaves. Fig. 300.—1. Eupatorium perfoliatum with opposite, connate-perfoliate leaves and cymose-paniculate inflorescence. 2. Eupatorium purpureum with verticillate, petiolate leaves, and a large terminal panicle of flowers. Powder.—Dark green; non-glandular hairs 2- to 8-celled, thin- walled, finely striate, (a) having an acute end cell and (6) having a rounded summit; glandular hairs either 6- to 8-celled in a double row, and with a 2-celled glandular head, or short-stalked and with a 4- to 12-celled glandular head; pollen grains ellipsoidal, 0.010 to 0.020 mm. in diameter and with numerous centrifugal projections; pappus occurring as a multicellular axis about 0.030 mm. in diameter