Wood of Liriosma ovata Miers, Oleaceae, or according to Rebourgeon, Acanthea virilis Wehmer, Acanthaceae. Habit. Brazil. Constit. Aromatic resin, muirapuamine, fat. Studies of components: Auterhoff, Pankow, Arch. Pharm. 301, 481 (1968); 302, 209 (1969). Reviews: Gaebler, Dtsch. Apoth. 22, 94 (1970); Steinmetz, Q. J. Crude Drug Res. 11, 1787 (1971).