Adenia. Adenia venenata Troost.—A climbing passion-flower of Africa, said by Schweinfurth to be used as a vesicant. (P. J,, March, 1874.) The Adenium hongkii (can't find this plant, not as an Adenium (Apocynaceae), nor as an Adenia (Passifloraceae) -Henriette) is employed by the natives of the Soudan as an ordeal poison. Perrott and LePrince (P. J., 1910, lxxxiv, p. 82) have separated an active principle which is neither glucosidal nor alkaloidal, and which has a strophanthin-like effect.