Habit: saprophytic herbs

Stem: unbranched, sheathing below middle

Leaf: characteristics: absent

Inflorescence: type: raceme

Inflorescence: position: terminal or subterminal

Sepal: free or similar

Petal: similar to sepals

Labellum: divided into epichil and hypochil

Anther: 2-loculed

Stigma: concave

Pollinia: number: 2

Staminode: 2, spotted

Pollinia: other characteristics: granular-farinaceous, 2-parted, neither caudicle nor viscidium

Fruit:type: capsule

Fruit: other characteristics: pendulous or ascending