Rainforest understorey trees. Leaves alternate, simple. Conflorescence raceme-like, borne below leaves; common bracts and floral bracts present. Perianth actinomorphic; tepals separating almost to base, caducous. Anthers apiculate; filaments adnate to tepals for most of their length. Hypogynous glands irregularly lobed. Gynoecium straight; pollen presenter slightly broadened; stigmatic groove small, terminal; ovules 2. Fruit a follicle, dehiscing at maturity. Seeds 2, winged; wing wider at the ends and on one side.