Diploprora Hook.f.

Two species—D. championii and D. truncata Rolfe ex Downie— are collectively distributed in Sri Lanka, Andaman Islands, India, Burma, Thailand, Vietnam, China, Taiwan, and the Ryukyu Islands.

Both species are epiphytes from 200 to 1700 m. Diploprora championii is epiphytic on tree trunks or lithophytic in valleys between 200 and 1500 m in China. It is reported as an epiphyte on branches overhanging watercourses and in wet evergreen forests up to 700 m in Sri Lanka. Diploprora truncata is recorded as an epiphyte in evergreen forests at 1650 m in Thailand.

Epiphytic herbs. Stems pendent, terete or slightly flattened, sometimes branched, with many nodes. Leaves distichous, blade narrowly ovate to falcate-lanceolate, articulate to an amplexicaul sheath. Inflorescence lateral, racemose, few-flowered. Flowers appearing a few at a time, widely opening. Sepals and petals similar, free, spreading, abaxial surface of sepals carinate. Petals narrower than sepals. Labellum superior, spurless, broadly attached to column base, hypochile boat-shaped, with raised side lobes, epichile narrowed, apex forked into two tails, or truncate. Column lacking a foot; pollinia four, unequal, globose, stipe narrower at apex than at base, viscidium ovate.