Trees; most parts glabrous or nearly so. Bark rough and brown. Leaves alternate, simple; margins undulate. Conflorescence raceme-like, axillary or ramiflorous, simple, solitary, densely flowered; subtending bract minute, acute; floral bracts absent. Flower pairs pedunculate. Flowers actinomorphic, bisexual, pedicellate, often caducous; receptacle straight, slender. Tepals revolute at anthesis, caducous. Stamens 4, inserted at base of limb on a short, broad filament. Hypogynous glands 4, free. Ovary sessile, unilocular; ovules 2; style geniculate just below the clavate pollen presenter. Fruit globose, indehiscent; exocarp corky. Seed 1 & ±globose, or sometimes 2 & ±hemispherical; testa neither thickened nor persistent.