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106. Castanea, N.F.—Chestnut.

Botanical name:

[image:12333 align=left hspace=1]106. CASTANEA, N.F.—CHESTNUT. The leaves of Castan'ea denta'ta Sudworth, collected in September or October while yet green. Off. U.S.P.1890. Oblong, elliptical, from 150 to 250 mm. (6 to 10 in.) long, and about 50 mm. (2 in.) broad, with a sharply pointed apex and a short petiole; margin somewhat unequally, but strongly, repand-dentate, with prominent parallel veins beneath each tooth (feather-veined); texture firm, flexible; odor slight; taste somewhat astringent. Constituents: Tannic acid about 9 per cent., gum, albumen, salts, and traces of resin and fats. Tonic and astringent, used almost exclusively in whooping-cough in the form of infusion or fl'ext. Dose: 1/2 to 2 dr. (2 to 8 Gm.).

Fluidextractum Castaneae, U.S.P. 1890, Dose: 1/2 to 2 fl. dr. (2 to 8 mils).

A Manual of Organic Materia Medica and Pharmacognosy, 1917, was written by Lucius E. Sayre, B.S. Ph. M.

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