File:American journal of pharmacy (1829) (14589697200).jpg

Identifier: americanjournal69phil (find matches)
Title: American journal of pharmacy
Year: 1829 (1820s)
Authors: Philadelphia College of Pharmacy and Science
Subjects: Pharmacy
Publisher: Philadelphia
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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FiK • un<lerground portion of the plant, one-half natural size. ferric alum. By treatinpj dry sections of the younp^ root fortannin with ferric chloride in absolute alcohol, tannin precipitateswere produced in the central parenchyma and the corticalparenchyma. In the old root tannin precipitates were produced in S6 Solanum Carolinense. V^Y^iv^lryMT^ a great number of the cells of the cortical parenchyma, also in aitw cells of the phloem tissue and the medullary rays. In themature stem, indications of tannin were obtained in abundance, inthe pith parenchyma, medullary rays, cambium zone, phloem, corti-cal parenchyma and suberous tissue. In the leaf indications wereproduced in all of the different tissues. In the fruit tannin indica-tions were obtained in the cells of the section irregularly scattered.The tannin was estimated by the * hide powder method, andfound to be 3-10 per cent, in the leaves; 2-27 per cent, in the root;
Text Appearing After Image:
Fig. 2, transverse section of rootlet of Solanum Carolinense, magnified 75diameters. A, epidermis ; b, collenchyma tissue ; c, cortical parenchyma ; d,endodermis ; e, phloem tissue ; / cambium zone ; g, duct of xylem ; h, xylemtissue, consisting of wood cells and ducts. 806 per cent, in the fruit; 5-06 per cent, in the stem—all calculatedfor absolutely dry material. Fig. I represents the underground portion of the plant. /e^^/._Phloroglucin and hydrochloric acid stain the xylem tissue,which is strongly lignified, a bright red. In the young undevelopedroot central parenchyma exists, but as the root becomes older thexylem of the radial bundle extends to the centre with the develop,ment of rings of growth, medullary rays and a cambium zone, and Am. Jour. PbarmFebruary, 1897 ^•) Solanuin Carolineiise. 87 has a similar appearance to the structure of a dicotyl stem. Zincchloriodide iodine shows an abundance of starch in the cells of themedullary rays, phloem, collenchyma and cortical pa

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