Prunus domes'tica, Prunum, Prune, N.F. -- The partly dried ripe fruit, with 30-35 p.c. of natural moisture when used for pharmaceutical purposes; W. Asia, cult. in S. France, California. Tree, 4.5-6 M. (15-20 degrees) high; leaves 5 Cm. (2') long, dentate, ovate, pubescent beneath; flowers whitish. Fruit (drupe), 3-4 Cm. (1 1/5-1 3/5') long, ellipsoidal, brownish-black, shriveled, sarcocarp sweet, acidulous, putamen hard, smooth or ridged; seed almond-shaped, but smaller, bitter almond taste. Of the several varieties the St. Catherine and Greengage are finer as a dessert, and Prune de St. Julian (France) as a medicine; contains sugar 12-25 p.c., pectin, albumin, malic acid, tartaric acid, salts; seed-fixed oil, amygdalin, emulsin. Nutritive, laxative, demulcent; constipation -- skins indigestible; fermented and distilled for brandy, which contains alcohol 40 p.c. Should be kept cool, in air-tight containers. Dose, ad libitum; 1. Confectio Sennae, 7 p.c.