Habit: epiphytic herbs

Stem: noded

Leaf: characteristics: sheathing or noding at base, apex notched or acute or obtuse or hooked, base clasping

Leaf: position: distichous

Inflorescence: position: laterally on stem

Inflorescence: other characteristics: branched, unbranched

Flower: other characteristics: spreading

Petal: shorter or smaller than sepals, similar to sepals

Labellum: with sac or spur or auricles at base, 3-lobed, adnate to column, 5-lobed

Column: without column foot, puberulous or pubescent

Pollinia: number: 4

Pollinia: shape: globose or subglobose

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

Stipe: shape: cuneate

Viscidium:shape: orbicular or suborbicular, ovate

Viscidium: other characteristics: wider than stipe