Overview
Caespitose epiphytes. Ramicauls ascending to erect, as long or longer than the leaves, concealed by imbricating, flattened sheaths, the sheaths frequently marked with bold near-black spots. Leaves one per ramicaul, usually elliptic-ovate, usually shortly petiolate, frequently suffused with purple. Inflorescences fascicles concealed by the uppermost ramicaul sheath, sequentially one-flowered, the peduncles filiform, persistent. Flowers usually boldly spotted and(or) striped. Dorsal sepal erect, with an elongate, club-shaped apex, the lateral sepals fused for most of their length, concave. Petals free, spreading, variously shaped at the base with long, filiform-linear blades terminating in club-shaped osmophores. Lip three-lobed, the lateral lobes (hypochile) usually erect, falcate, hook-like, the midlobe (epichile) oblong, pandurate, or ovate, with a pair of basal keels. Column elongate, club-shaped, with a shrot foot, the foot with a pair of knee-like knobs; pollinia 4, in two pairs, without a stipe or viscidium.