Mostly evergreen small trees or shrubs. Leaves opposite or temate; subsessile, coriaceous; intrapetiolar stipules rarely connate. Flowers large, axillary solitary rarely corymbose. Calyx tubular, ovoid or obconical, sometimes split on one side or variously lobed, persistent. Corolla white or pale yellow, 5-12-lobed, salver-shaped or cylindrical. Stamens equal in number to the corolla-lobes, inserted at the throat of corolla-tube, anthers sessile or subsessile; pollen in tetrads. Ovary one-loculed, placentation parietal, ovules many, style short and thick, stigma large, club shaped or 2-cleft. Fruit fleshy or coriaceous, endocarp woody. Seeds many, embedded in the placenta, compressed.