337. GOUANIA.—CHEWSTICK. The stems of Goua'nia domingen'sis Linné. Habitat: West Indies. Brownish-gray, wrinkled pieces of the stems, with a thin bark, and a yellowish-gray, fibrous, porous wood. It contains a bitter principle and is used as a tonic.

A Manual of Organic Materia Medica and Pharmacognosy, 1917, was written by Lucius E. Sayre, B.S. Ph. M.