Description from Flora of China
Trees. Leaves ovate, entire, basally palmately 3-7-veined. Inflorescence terminal, cymose, forming a lax panicle. Flowers bisexual, zygomorphic. Epicalyx lobes minute, lanceolate. Sepals 5, free. Petals 5, unequal. Stamens 15; filaments connate into staminal tube, completely adnate to ovary stipe to form androgynophore, upper part of staminal tube enlarged and urceolate, enclosing pistil; anthers in 5 groups of 3, 2-celled; staminodes reduced to small teeth alternating with anther fascicles. Ovary on top of androgynophore, 5-loculed, 5-lobed; ovules 5 in each locule; style slender; stigma 5-lobed. Capsule membranous, inflated, loculicidal. Seeds 1-2 in each locule, globose, verrucose.
One species: tropical Africa, Asia, and Australia.