Geodorum Jackson, in Andr., Bot. Repos. (1810) t. 626
- Genus Ascochilus Blume, Fl. Javae (1828) vi (nomen)
- Genus Cistella Blume, Bijdr. (1825) 293
- Genus Ortmannia Opiz, Flora 17 (1834) 592
- Genus Otandra Salisb., Trans. Hort. Soc. 1 (1812) 298
Sympodial terrestrial plants with short rhizomes. Pseudobulbs consisting of several nodes, partly underground. Leaves few, sheathing at the base, glabrous, plicate, deciduous, convolute, thin-textured. Inflorescence arising from the base of the immature shoot, a raceme, flower-bearing part abruptly curved downwards. Flowers medium-sized, resupinate. Sepals free. Petals free, usually broader than the sepals. Lip not spurred, shallowly cup-shaped, not mobile. Column-foot present. Pollinia 2, solid, cleft, caudicles absent, stipe present, viscidium present.
Species present in New Guinea: