Habit: epiphytic herbs

Rhizome: retrose or transverse or creeping or ascending, noded

Pseudobulb: noded, ovoid or elliptic or spindle-shaped or ovate or conical, with sheath

Inflorescence: type: raceme

Inflorescence: position: terminal or subterminal, laterally on stem

Sepal: free or similar

Petal: narrower than sepals or as long as dorsal sepal

Labellum: adnate to column, not lobed

Column: with column foot

Pollinia: number: 8

Pollinia: other characteristics: neither caudicle nor viscidium