Trees or shrubs. Leaves opposite, occasionally verticillate, coriaceous, peti-olate; stipules large, often deciduous, glandular within at the base. Inflorescences terminal, paniculate. Flowers with the hypanthium ovoid or turbinate, the caly-cine cup cupuliform, corolla with the tube somewhat funnelform or salverform, replete with fibers, glabrous within, the lobes 5, valvate, papillose within and on the margins; stamens 5, the anthers linear, included, dorsifixed; ovarian disc pulvinate, the ovary 2-celled, the style slender, the stigmatic lobes 2, included, slender, the placentas adnate to the septum, the ovules numerous. Fruits cap-sular, narrowly clavate or cylindrical, septicidally bivalvate from the apex to the base; seeds numerous, imbricate, peltate, the body oblong, surrounded by a mem-branous, dentate or laciniate wing.