Epiphytic herbs. Roots terete, not branching, glabrous, smooth. Stem pendent, rooting at base. Leaves 3–5, conduplicate, articulate, distichous, elliptic to linear-elliptic, subfalcate, twisted at base so as to lie in one plane with stem, margins denticulate near the unequally bidentate apex. Inflorescence lateral, solitary, racemose, many-flowered; peduncle elongate, patent; rachis continuing the line of the peduncle, flexuose, angular. Flowers resupinate, about 1.5 cm wide, longevity unknown, opening a few at a time, quaquaversal, light purple, with orange-yellow and deeper purple markings on labellum. Sepals entire, free, elliptic or obliquely ovate, obtuse. Petals narrower than sepals, obovate-oblong. Labellum hinged with apex of column foot, not spurred, concave, trilobed, with two parallel calli in centre of labellum between lateral lobes, midlobe elliptic, with a raised crest along median, the midlobe connected to lateral lobes by a pair of lamellae, one on each side of central crest. Column curved, dilated apically, column foot distinct, about half as long as column; anther helmet-shaped, long-rostrate, pollinia four, separate, obliquely ovoid, stipe longer than pollinia, narrowly obovate-oblong; rostellum elongate, bifurcate at apex after removal of pollinarium.