Scientific and applied pharmacognosy intended for the use of students in pharmacy, as a hand book for pharmacists, and as a reference book for food and drug analysts and pharmacologists . tapering into thepetiole; margin entire; upper surface dark green, glabrous, epidermiswith distinct papillae; under surface grayish-green, slightly pubescenton the veins, epidermis distinctly sinuate, midrib dark brown, theveins of the first order diverging from it at angles of about 45° andrunning nearly parallel to near the margin; petiole dark brown, 5 to15 mm. in length and semicircular in cross-section;
Scientific and applied pharmacognosy intended for the use of students in pharmacy, as a hand book for pharmacists, and as a reference book for food and drug analysts and pharmacologists . tapering into thepetiole; margin entire; upper surface dark green, glabrous, epidermiswith distinct papillae; under surface grayish-green, slightly pubescenton the veins, epidermis distinctly sinuate, midrib dark brown, theveins of the first order diverging from it at angles of about 45° andrunning nearly parallel to near the margin; petiole dark brown, 5 to15 mm. in length and semicircular in cross-section; texture solitary, pedicel to 2 cm. in length; calyx deeply 5-cleft,about 1 cm. in length, outer surface slightly pubescent; corolla 5-parted, about 2 cm. in length, campanulate, yellowish purple; sta-mens five, included; style somewhat exserted. Fruit, a superiorberry, globular, dark green, 7 to 10 mm. in diameter, 2-locular, many 582 SCIENTIFIC AND APPLIED PHARMACOGNOSY seeded. Seeds campylotropous, somewhat reniform, flattened, lightbrown; testa finely pitted, with a curved embryo embedded in theendosperm; odor distinct, heavy; taste somewhat Fig. 243.—Plants from 300 large belladonna seeds seven weeks after sowing,showing the unequal development of seedlings.—After Sievers, Amer. , 1914, p. 494. Inner Structure.—(Fig. 245.) Leaves bifacial; both the lowerand upper epidermis consist of cells, having thin undulate walls,stomata and hairs, these latter being more abundant on the dorsalsurface; a layer of short palisade cells; a crystal layer composed ofparenchyma, the nearly isodiametric cells being filled with sphenoidalmicrocrystals; several layers of loose mesophyll, among which are BELLADONNA 583 included the bicollateral fibre-vascular bundles occurring in the veins;non-glandular hairs, uniseriate, consisting of from 2 to 5 cells; gland-ular hairs of 2 types: (a), having a 2-to 3-celled stalk and a 1-celled-secreting hea
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1920
