DIOS′MA

Syn. Bookoo, Buku ; Folia barosmæ , F. diosmæ , L.; Buchu (Ph. L.), Bucku (Ph. E.), Diosma (Ph. L. 1836). “The leaves of Barosma serrati folia , B. crenulata , and B. crenata .” (Ph. L.) These species were all included by De Candolle in the genus Diosma . Buchu is principally employed in chronic affections of the uri no-genital organs, especially that of the mucous membrane of the bladder, attended with copious discharge of mucus.— Dose , 20 gr. to 1 ⁄ 2 dr. of the powder, taken in wine; or made into an infusion or decoction. The officinal buchu leaves are “glabrous, glandular; either linear-lanceolate with small serrations, or ova to-oblong, obtuse, crenated, ovate or obovate, serrated.” (Ph. L.) Their odour somewhat resembles that of rue, and their taste is warm and mint-like.