Raceme of few to many fls; floral bracts heavy in texture and often exceeding ovary at fl. Per. glab.; dorsal sepal uppermost, broad and arched over column; lateral sepals much longer, very narrow-linear, channelled; petals short, narrow and ± hidden under dorsal sepal. Labellum almost as large as dorsal sepal, sessile, 3-lobed; callus thick, median. Column short; wings in form of 2 free lateral processes; anther dorsal, taller than stigma, pollinia ill-defined, pollen granular; stigma disc-shaped; rostellum prominent, acute. Plants terrestrial, glab.; tuber long-ovoid, us. produced close to the previous one. Lvs several, sheathing at base, narrow, followed by foliaceous cauline bracts. Monotypic genus, confined to Australia, New Caledonia and N.Z.