Trees. Leaves petiolate, the stipules small, deciduous. Inflorescences pa-niculate, terminal, corymbose, ebracteolate or bibracteolate. Flowers in bud en-closed by membranous bracts, sessile or subsessile, the hypanthium oblong, the calycine cup truncate, sometimes partly expanded into a large foliaceous stalked blade, the corolla with the tube short, funnelform, the mouth villous, the lobes 6-8, imbricate or contorted, 1 lobe exterior, the stamens exserted, the anthers versatile, the filaments subulate, the style slender, the stigmas 2, narrowly oblong, the ovules disposed in 2 cells, numerous, imbricate, the placentas adnate to the septum. Fruits capsular, oblong cylindrical, 2-celled, septicidally bivalvate, the valves coriaceous; seeds numerous, imbricate, usually minute, the testa mem-branous, produced at each end as an elongate wing.
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