American journal of pharmacy . Geise mitim. cut in sections, mostly from 5 to 15 millimetres, and occasionally 3centimetres thick, the roots much thinner, externally li«^ht yellowishbrown, with purplish-brown longitudinal lines; tough ; fracturesplintery; bark thin, with silky bast fibres, closely adhering to the. Fig, I.—Cross-sections of Gelseinium sempervireus. A, stem ; /?, rhizome ;C, root. pale yellowish porous wood, which has fine medullary rays, and inthe rhizome a thin pith ; odor aromatic, heavy; taste bitter. It will be noted in the above description that the only distinctionmade be
American journal of pharmacy . Geise mitim. cut in sections, mostly from 5 to 15 millimetres, and occasionally 3centimetres thick, the roots much thinner, externally li«^ht yellowishbrown, with purplish-brown longitudinal lines; tough ; fracturesplintery; bark thin, with silky bast fibres, closely adhering to the. Fig, I.—Cross-sections of Gelseinium sempervireus. A, stem ; /?, rhizome ;C, root. pale yellowish porous wood, which has fine medullary rays, and inthe rhizome a thin pith ; odor aromatic, heavy; taste bitter. It will be noted in the above description that the only distinctionmade between the root and rhizome is that the latter lias a thinpith. Professor Rothrock (Am. Jour. Phar., 1884, p. 130) calls atten-tion to two structural characteristics of stems and roots, which, he lO Gelseinium. Am. Jour. , 1897. says, are peculiar and of positive value. The first of these char-acteristics, he says, is derived from the medullary rays. Theseusually widen in a marked manner, going from centre to circumfer-ence, being sometimes much more than twice as broad externally asinternally. The second characteristic is the tendency of the pith tobe penetrated by several plates of large, thin-walled cells, whichdivide the pith more or less perfectly into four portions. This lat-ter charac
Size: 1564px × 1598px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookidamericanjournal69phi, booksubjectpharmacy
