Collyris minor Vahl; Dischidia minor (Vahl) Merrill; D. orbicularis Decaisne.

Herbs glabrous except for flowers. Stems slender, twining to 1.5 m; internodes longer than leaves. Petiole 1-2 mm; leaf blade orbicular, 7-10 mm in diam.; lateral veins obsolete. Pseudumbels subsessile. Sepals ovate. Corolla white or yellowish white; lobes ovate-triangular, ca. 1 × 0.5 mm, thickened at middle. Corona lobes anchor-shaped, shorter than gynostegium, stalked, apex 2-cleft, widely divergent, lateral arms oblong, pendulous. Apical membrane of anthers ovate-triangular; pollinia oblong. Stigma head discoid, mucronate at apex. Follicles lanceolate, ca. 4 cm × 5 mm. Fl. Mar-Jun, fr. Jun-Sep.

Forests; 300-1000 m. Fujian, Guangdong, Guangxi, Hainan, S Yunnan [India, Indonesia, Laos, Malaysia, Sri Lanka, Thailand, Vietnam; Australia, Pacific Islands].