Habit: epiphytic herbs

Leaf: characteristics: sheathing or noding at base, margin recurved or apex lobed, resupinate

Leaf: shape: elliptic, oblong

Inflorescence: position: laterally on stem

Inflorescence: other characteristics: unbranched

Sepal: free or similar

Petal: shorter or smaller than sepals, similar to sepals

Labellum: with sac or spur or auricles at base, 3-lobed, adnate to column

Column: without column foot

Rostellum: 2-lobed or beaked

Pollinia: number: 2

Pollinia: other characteristics: with caudicle or viscidium, with stipe

Stipe: shape: spatulate or subspatulate

Viscidium:shape: orbicular or suborbicular

Viscidium: other characteristics: wider than stipe