Pterygota Schott & Endl.

Trees. Leaves entire to irregularly lobed. Flowers unisexual to polygamous in panicles in the axils of fallen leaves. Calyx deeply 5-partite. Corolla absent. Staminal column cylindric, bearing 4 - 5 groups of ca 5 anthers in each male flower. Ovaries 5, sessile, ovules many; styles short, recurved; stigmas 2-lobed. Follicles 5, hard, woody, large follicles. Seeds many, winged at apex.

India, Sri Lanka, Myanmar, Malesia, S. China, New Guinea, Tropical Africa and Madagascar, ca 5 species; one in India.

List of Lower Taxa