General therapeutics and materia medica (volume 1): adapted for a medical text book . T Fig. 172. Particles of Arrowroot, Potato-starch and Tous-les-mois as seen through the microscope on a^micrometer, whose squares measure one-thousandth of an inch.— (Christison.) 1. Globules of West India and East India Arrowroot. 2. Those of Potato-starch, prepared in Dr. Christisons laboratory. 3. Those of Tous-les-mois from St. Kitts. 16. Florida arrowroot has generally been referrred to Marantaarundinacea, the plant that affords Bermuda arrowroot; but Dr. Carsonhas shown that this is an error, and that i
General therapeutics and materia medica (volume 1): adapted for a medical text book . T Fig. 172. Particles of Arrowroot, Potato-starch and Tous-les-mois as seen through the microscope on a^micrometer, whose squares measure one-thousandth of an inch.— (Christison.) 1. Globules of West India and East India Arrowroot. 2. Those of Potato-starch, prepared in Dr. Christisons laboratory. 3. Those of Tous-les-mois from St. Kitts. 16. Florida arrowroot has generally been referrred to Marantaarundinacea, the plant that affords Bermuda arrowroot; but Dr. Carsonhas shown that this is an error, and that it is de-rived from Zamia integrifolia, or Z. pumila; Cycadaceee, which appear to be only found inFlorida. The tubers also contain large quantitiesof a feculent substance, and are used as an articleof food by the Seminole Indians. They are pre-pared by roasting ; and were eaten by the whiteParticles of west India inhabitants, and the army of Florida, as a substitute Arrowroot. (Pereira.) for potatoes> The fecula is obtained from the tubers in the same manner as arrow-. MARANTA. 387 Fig. 173. root from the tubers of maranta arundinacea. Coarse specimens of thefarina of the saw palmetto—chamccrops serrulata, were presented to theauthor some years ago. It was evidently impure, and this may accountfor its inducing bowel complaints in the Indians who use it as diet. Ofthe rude mode in which they prepare it, the author has given an accountin the American Medical Intelligencer for August 1, 1838, on the author-ity of General Persifor F. Smith in a letter to C. Roberts, Esq., of Phila-delphia. Florida arrowroot, as well as the farina, is known in the Southernstates by the name coonti or coontie. When compared with Bermudaarrow-root, it has a more mealy appearance and feel; and is of a dullerwhite colour, with less of the crystalline lustrous hue. If carefully pre-pared, however, it is pure white ; but is apt to be lumpy, like the feculaobtained from tapioca root. (Carson
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