After Ada, the Queen of Caria in Asia Minor.
Epiphytic or epilithic herbs, sympodial, with short creeping rhizomes. Stems thickened into ovoid pseudobulbs, compressed, sheathed in leaf-like bracts, green. Leaves apical, 1 or 2, strap-like, thin, folded at base, stalkless. Inflorescences basal racemes, bracteate, arching. Flowers resupinate, 8-18, medium sized, nodding, vivid orange or scarlet. Sepals similar, free, narrow, pointed at tip. Petals slightly smaller than sepals, free. Labellum entire, narrow. Column short, inflated at base. Pollinia 2, grooved.
8 species from Ecuador and Colombia.
Pendent racemes of vivid orange or scarlet, often with poorly opening flowers.
Source: (2005). Orchidaceae. In: . Horticultural Flora of South-eastern Australia. Volume 5. Flowering plants. Monocotyledons. The identification of garden and cultivated plants. University of New South Wales Press.