Aphanostelma Schlechter.

Lianas or scandent subshrubs. Leaves opposite, long petiolate. Inflorescences long pedunculate, racemelike with cymules laxly arranged along well-developed rachis. Calyx with 5 basal glands. Corolla subrotate; lobes longer than tube, twisted to left. Corona ringlike, inserted at base of gynostegium, rim 5-lobed; lobes hoodlike. Filaments connate into a short tube; anther appendages incurved; pollinia 2 per pollinarium, oblong or ovate-oblong, pendulous. Stigma head long beaked, 2-cleft or entire, exserted beyond anther appendages. Follicles fusiform or oblong, pericarp muricate, rugose, or smooth. Seeds ovate.

About six species: E Asia, two in China.