Helleb'orus ni'ger, Black Hellebore. -- The dried rhizome and roots, U.S.P. 1820-1870; C. and S. Europe, mountains. Acaulescent perennial, leaves evergreen, 7-9-lobed, flowers rose-like. Rhizome knotty, 5 Cm. (2') long, 12 Mm. (1/2') thick, blackish, bark thick, wood-wedges 8, medullary rays broad, taste sweet, bitter, usually from Germany; contains helleborin, helleborein, helleboretin, resin, volatile oil, fixed oil, gum, etc. Heart stimulant, drastic hydragogue cathartic, alterative; used for melancholia, mania, dropsy, amenorrhea, epilepsy, skin troubles; in decoction, infusion, tincture, extract. Dose, gr. 5-20 (.3-1.3 Gm.). H. Fo'tidus, Bear's Foot. -- The leaves, U.S.P. 1820-1830; Europe. Perennial herb--the most energetic of the genus. Used for asthma, hysteria, hypochondriasis, tenia; in powder, decoction, syrup. Dose, (root), United States, Europe; rhizome about the same as H. niger, but has only 4 wood-wedges, and is smaller.