Shrubs or small trees. Leaves membranous, glabrate, petiolate; stipules short, acute. Inflorescences terminal or axillary, cymose, the flowers occasionally sol-itary (not Panama). Flowers with the calyx 5-8-lobed, deciduous in fruit; corolla funnel shaped or campanulate, the tube asymmetric, curved, gibbous ventricose, the lobes 5-8, short, plicate imbricate; anthers exserted, the filaments free, not attached to the corolla tube; ovules numerous, the ovary 2-celled. Fruits capsular, compressed oval, usually coriaceous and conspicuously lenticellate, dehiscing longitudinally; seeds broadly winged.
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