. American journal of pharmacy . he outer bundles (Fig. i).A few small bundles occur in the cortex surrounded by a single rowof sclerenchymatous cells. In mature rhizomes the pith shows some•disintegration, and the center of the section is hollow. Cynodon Dactylon.—Only one ring of sclerenchyma is present,forming a wavy band inside the narrow cortex and around the outerpart of the rhizome. The cortex in this case is narrower than inTriticum repens, and it encloses no small vascular bundles. Thescattered bundles within the ring of sclerenchyma have each a bundlesheath of the same tissue one or
. American journal of pharmacy . he outer bundles (Fig. i).A few small bundles occur in the cortex surrounded by a single rowof sclerenchymatous cells. In mature rhizomes the pith shows some•disintegration, and the center of the section is hollow. Cynodon Dactylon.—Only one ring of sclerenchyma is present,forming a wavy band inside the narrow cortex and around the outerpart of the rhizome. The cortex in this case is narrower than inTriticum repens, and it encloses no small vascular bundles. Thescattered bundles within the ring of sclerenchyma have each a bundlesheath of the same tissue one or two cells wide. Dog grass rhizome 1 Reprinted from The Pharmaceutical Journal and Pharmacist. July 26,1919. 686 Triticum Repens. Am. Jour. October, 1919. is usually oval in section, and at each end of the oval two lacunaeoccur in the cortex. Within the sclerenchyma a large number ofscattered vascular bundles occur. The most distinctive feature ofthis rhizome, however, is that all the cells of the ground tissue within. Fig. 1. Triticum repens. the sclerenchyma have comparatively thick walls and are filled withstarch grains (Fig. 2). Starch does not occur in any quantity inany of the other species examined. This starch gives a character-
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Keywords: ., bookcentury1800, bookdecade183, booksubjectpharmacy, bookyear1835
