Trees, often large. Leaves alternate or subopposite coriaceous, often crowded towards the end of branchlets, exstipulate, crenulate, usually with glands near the base of midrib or petiole. Inflorescence a spike, sometimes panicled. Flowers small, greenish or white, bisexual, but the upper flowers on the racemes often male, bract narrow, linear, deciduous. Calyx 5 lobed, campanulate, lobes triangular, deciduous. Hypanthium ovoid or cylindrical. Petals absent. Stamens 10, episepalous, densly hairy, filaments subulate or filiform, exserted, anthers small, lobes scarcely connected. Disc intrastaminal. Ovary unilocular, ovules 2-3, style long. simple. Fruit ovoid, drupaceous, 2-5 winged or angular.