Tanghinia. Ordeal bean of Madagascar. Tanghinia venenifera.

Tanghinia. Ordeal Bean of Madagascar.—Tanghinia venenifera Poir. (Cerbera Tanghin Hook.) (fam. Apocynaceae), has been investigated, and, according to C. E. Quinquaud, is both a respiratory and a cardiac poison. (C. R. A. S., cl, 534; see also T. G., vol. ii, 610.) The active principle, tanghinin, occurs in colorless lustrous scales, efflorescing in the air, having a bitter and sharp taste, soluble in alcohol, ether, and acetic acid.

The Dispensatory of the United States of America, 1918, was edited by Joseph P. Remington, Horatio C. Wood and others.