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 . se ofMexican sarsaparilla. Inner Structure.—See Figs. 40-42. By reason of the differences in the shapt, and thickenings ofthe walls of the cells of the endodermis Hartwich (Ber. d. pharm SARSAPARILLA 105 Ges., 1907, p. 250) distinguishes the following different commercialvarieties of sarsaparilla. 1. Honduras, in which the cells of the endo-dermis are mostly quadratic in shape, seldom tangentially elongatedan
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 . se ofMexican sarsaparilla. Inner Structure.—See Figs. 40-42. By reason of the differences in the shapt, and thickenings ofthe walls of the cells of the endodermis Hartwich (Ber. d. pharm SARSAPARILLA 105 Ges., 1907, p. 250) distinguishes the following different commercialvarieties of sarsaparilla. 1. Honduras, in which the cells of the endo-dermis are mostly quadratic in shape, seldom tangentially elongatedand only slightly thickened. 2. Vera Cruz (a Mexican variety), thecells being radially elongated and considerably thickened upon theinner side. 3. Tampico (a variety of Mexican), in which the endoder-mal cells show considerably variation and are frequently not to bedistinguished from the first two varieties. 3. Guatemala or Man-zamillo, in which the cells of the endodermis are tangentially elongatedand are strongly thickened upon the inside. Nicaragua sarsapa-rilla resembles the drug known as Honduras, but is distinguishedfrom this by the greater thickness of the endodermal Fig. 42.—Transverse section of Sarsaparilla in the region of the endodermal pointed out by Hartwich,the inner walls are usually furnished with poresThe radial walls are always suberized and this fact may be determinedby the use of chromic acid. Sometimes some of the adjoining parenchymacells in the pith are thickened and resemble the endodermis (x). Theendodermal cells are not always thickened but may have comparativelythin walls (P); forming passage cells for the exchange of materialbetween cortex and pith. The thickening of the cell walls of the endodermisconsists of a modified cellulose. It is not colored either blue or violet uponthe addition of chlorzinc-iodide, unless the sections have been first treatedwith chromic acid. Lignification of the walls is most pronounced in youngroots an
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