Taeniophyllum Blume, Bijdr. (1825) 355
- Genus Alwisia Thw. ex Lindl., J. Linn. Soc.
- Genus Ankylocheilos Summerh., Bot. Mus. Leafl. 11 (1943) 168
- Genus Cryptorchis Makino, Bot. Mag. (Tokyo) 7 (1893) 118
Leafless monopodial epiphytes. Stem very short. Inflorescence lateral from the stem, a few- to many-flowered raceme, with the flowers opening in succession; peduncle sometimes hairy, rachis usually very short, sometimes hairy or warty. Flowers minute to medium-sized, often ephemeral, resupinate or not. Sepals all three connate or free. Petals connate to the sepals or free, usually similar to the dorsal sepal, but often somewhat narrower. Lip spurred, not mobile. Column-foot absent. Rostellum very short to long and beak-like. Pollinia 4, solid, caudicles absent, stipe present, viscidium present.