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Small terrestrial herbs with basal or semi-basal leaves. Leaves usually radical (Panama), sessile or petiolate, membranaceous, large or small. Inflorescence a terminal spike. Flowers small, non-resupinate. Sepals connate at their bases into a tube, spreading or revolute. Petals narrow, adnate to the base of the column, often revolute. Lip uppermost, unguiculate and with the claw adnate to the sepals, lamina plane to concave, cucullate or galeate, biauriculate at the base, often enclosing the column. Column short; stigmata 2; clinandrium erect, acuminate or subfilamentous, the margins adnate to the rostellum; pollen granular or powdery.
