File:American journal of pharmacy (1881) (14595713900).jpg

Identifier: americanjour534111881phil (find matches)
Title: American journal of pharmacy
Year: 1835 (1830s)
Authors: Philadelphia College of Pharmacy Philadelphia College of Pharmacy and Science
Subjects: Pharmacy Pharmacology
Publisher: Philadelphia : Philadelphia College of Pharmacy
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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Text Appearing Before Image:
. The fibrovascular bundles in theouter circle are composed of about 12 vessels each, shortly jointed,and their course is exceedingly difficult to trace. They are all of oneclass, namely, pitted vessels; the sieve tubes are few, and nearly allsituated in the outer portion of the fibrovascular bundles. The fibro-vascular bundles in the inner circle are smaller, the vessels are longerand their course is quite easily traced; the sieve tubes are in the sameposition as in the outer row of bundles. Inside of the circle of fibrovascular bundles, and between them, isloose parenchyme, filled with starch; the large cells, ee, containing thered juice, are shown with the juice dried and adhering to the cellwalls. According to De Bary, (loc, cit.), laticiferous ducts are absent in theSanguinaria, having in their place large thin-walled cells, filled w^ithred juice. In only one specimen out of nearly 50 examined werefound spiral ducts in the rootlets and inner circle of the fibrovascularbundles. 18
Text Appearing After Image:
Am. Jour. Pharm.)June, 1881. / Sanguinaria Canadensis. 275 Fig. 2 represents a longitudinal section of the rhizome, the structure■of which may be understood from the above ex2)lanation of the cross-section. Fig. 3 represents a transverse section of a rootlet; the vessels areseen to be closely aggregated in the center, surrounded by sieve tubes,which, as they become more removed from the vessels, are of some-what, but slightly, increased diameter. Outside of the nucleus sheaththe structure consists of parenchyme, flattened and elongated, and cort-iaining resin cells. »

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