11. Doiscoreaceae.—Yam family.

74. DIOSCOREA, N.F.—WILD YAM. COLIC ROOT. The rhizome of Diosco'rea villo'sa Linné. Habitat: United States. Expectorant, diaphoretic, antipasmodic, and a stimulant to the intestinal canal. It is a valuable remedy in bilious colic. Dose: 15 to 60 gr. (1 to 4 Gm.), fluidextract.

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