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 . Carolina pink (Spigelia marilandica) showing the rhizome bearing two brancheswith opposite leaves, the flowers occurring in terminal scorpioid cymes.—After Carson. Roots 5 to 10 cm. in length, about mm. in diameter, withnumerous rootlets; externally dark brown, longitudinally wrinkled;internally light brown, wood nearly cylindrical, porous. Inner Structure.—See Figs. 225 and 226. 529. ^- Fig. 225.—Pinkroo
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 . Carolina pink (Spigelia marilandica) showing the rhizome bearing two brancheswith opposite leaves, the flowers occurring in terminal scorpioid cymes.—After Carson. Roots 5 to 10 cm. in length, about mm. in diameter, withnumerous rootlets; externally dark brown, longitudinally wrinkled;internally light brown, wood nearly cylindrical, porous. Inner Structure.—See Figs. 225 and 226. 529. ^- Fig. 225.—Pinkroot (Spigelia marilandica): A, transverse section of root showing epidermis (e), parenchyma containing starch (p), peripheral layer of centralcylinder (I), the endodermis (e), a pericambial layer (i). The central cylinderconsists of six to eight radial fibrovascular bundles, and some of the tracheaecontain a brown gummy substance. B, transverse section of rhizomeshowing epidermis (t), the outer wall of which contains a yellowish-brownsubstance, parenchyma (p) of cortex containing starch, sieve of cortex (s),cambium (c), tracheae (t), tracheae (r) containing globular or somewhatirregular yellowish-brown masses, tracheids (h), internal sieve groups (s),parenchyma of pith {p) containing starch. C, longitudinal section of thewoody part of the rhizome. D, isolated starch grains, which are from mm. in diameter. 530 SCIENTIFIC AND APPLIED PHARMACOGNOSY Powder.—Grayish-brown; starch grains spheroidal or slightlypolygonal, from to mm. in diameter
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1920
