File:American journal of pharmacy (1829) (14776420345).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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Fig. J, longitudinal section of younj;^ root of Solanuni CaroHnense, magni-fied 75 diameters. A, epidermis, not yet displaced by cork cells formingbeneath ; c, cortical parenchyma ; d, phloem tissue ; ^, cambium zone ; /, xy-lem tissue, consisting of wood cells and ducts ; g, central parenchyma, notyet develof>ed into xylem tissue ; h, duct of xylcm. several rows of collenchyma tissue ; interior to this a layer of corticalparenchyma, consisting of several tiers of cells, then the phloem tis-sue and finally the xylem, which extends to the centre and is sepa-rated from the phloem by the cambium zone. The different raysare separated by the medullary rays.
Text Appearing After Image:
Fig. 4, transverse section of the mid-rib of a leaf of Solanum Carolinense,with one of the prickles, which is shown in longitudinal section, attached ;magnification, 150 diameters. A, epidermal cells ; b, parenchyma of upperportion of mid-rib ; c, a portion of the lamina of the leaf; d, xylem tissue ofmid-rib ; c, cambium zone ; /, phloem tissue of mid-rib ; g, parenchyma oflower portion of mid-rib ; h, collenchyma tissue ; i, slightly lignified tissue ofthe prickle, which occurred on the mid-rib and was cut through longitudinally;k, epidermal tissue, more lignified. Am. Jonr. Pbarm.)February. Ift97. j Solatiion Carolinense. 89 Steyn.—Zinc chloriodide iodine shows starch in the central paren-chyma, in the cells of the medullary rays, in the cortical paren-chyma, and in the cambium zone. Chloral hydrate iodine gives thesame results, as does also potassium iodide iodine, but much moreprominently, especially in the central parenchyma tissue, whichcontains an abundance of the substance.

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