Cusparioe Cortex, Cusparia Bark, Angustura. The bark of Cuspa'ria Angostu'ra (Galipe'a Cusparia); official, 1820-1880; Northern South America. Tree 4.5-6 M. (15-20°) high, leaves with 3 leaflets, 15-25 Cm. (6-100 long, 5-10 Cm. (2-4') broad, spotted white, tobacco odor, flowers white; bark in flat, curved, or quilled pieces 2.5 Mm. (1/10') thick, ochrey-gray, friable periderm, inside cinnamon-red, striae of calcium oxalate, aromatic bitter; contains volatile oil, resin, angusturin, 4 alkaloids. Used for diarrhoea, dysentery, dyspepsia, typhoid, stimulant, febrifuge, large doses emetic; in infusion, tincture, extract. Dose, gr. 10-30 (.6-2 Gm.).
False Angustura Bark (Strychnos Nux-vomica) has stone-cells, no striae of calcium oxalate; is very bitter, not aromatic, contains strychnine, brucine.
Fig. 217. - Angustura bark: one-half natural size.