137. Helleborus niger.—Black hellebore.

137. HELLEBORUS NIGER.—BLACK HELLEBORE. The rhizome and roots of Helle'borus ni'ger Linné. Habitat: Central and Southern Europe. Irregular and knotty; externally brown-black; internally grayish, with a thick bark; taste sweetish, bitter, and acrid; odor slight, peculiar. Poisonous; anthelmintic, drastic cathartic, and emmenagogue. Dose: 5 to 20 gr. (0.3 to 1.3 Gm.).

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