Sim-a-ru-ba'se-e. L. Simarub-a+ aceae; from native name in Guiana. Shrubs, trees. Distinguished by containing bitter principle, and from allied Rutaceae, by leaves being exstipulate, without glands or dots, alternate; ovary stalked, 4-5-lobed, superior; ovules 1 in each cell; stamens 8-10, augmented each by 1 or more scales; calyx 4-5; petals 4-5; fruit drupe; seed exalbuminous; tropics; bitter, tonic, febrifuge.

Genera: 1. Picrasma. 2. Quassia.