Sco'pola carniol'ica, Scopola.--The dried rhizome containing .5 p.c. of mydriatic alkaloids, U.S.P. 1900; C. Europe, Germany, Austro-Hungary, Carniola. Shrub, 20-60 Cm. (8-24') high, usually branchless; leaves oblong-lanceolate, wavy or notched toward apex, petiolate, reticulate, flowers tubular, campanulate, brownish-purple; fruit capsule, circumscissile, dehiscent. Rhizome flexuous, cylindraceous, mostly in pieces 2.5-7.5 Cm. (1-3') long, .8-1.6 Cm. (1/3-2/3') thick, often split before drying; upper surface with large, closely set cup-shaped stem-scars, margins irregularly contracted, brownish, longitudinally wrinkled, obscurely annulate, nodular-roughened, fracture short, sharp; wood indistinctly radiate, central pith horny; nearly inodorous; taste sweetish, bitterish, acrid; solvents: 80 pc. alcohol, water partially; contains scopolamine .05 p.c., hyoscyamine .5 p.c., atropine, scopoletin, ash 7-10 p.c. Mydriatic, analgesic, hypnotic, antiphlogistic; glaucoma, ptyalism, hyperidrosis. Should not be given in renal affection nor in advanced age, and cases of poisoning should be treated as in belladonna. Dose, gr. 1-3 (.06-.2 Gm.); extract, gr. 1/4-1/2 (.016-.03 Gm.); scopolamine, gr. 1/250-1/60 (.00025-.001 Gm.); S. japon'ica, Japanese Belladonna, plant resembles very closely S. carniolica, differing only in having the style curved, calyx-teeth unequal, leaves less obovate with longer petioles; rhizome 10 Cm. (4') long, 12 Mm. 1/2') thick; this also yields atropine, scopolamine, etc.