Medium sized epiphyte. Pseudobulbs ovoid, much compressed, to 5 cm long. Leaves 1, to 25 cm long, to 4 cm wide. Flowers few-many, to 15 cm wide, yellow blotched with brown; summer. Sepals and petals narrow, petals about half as long as sepals. Labellum obscurely 3-lobed, whitish. Syn. Ada keiliana (Lindl.) N.H.Williams.
Colombia and Venezuela.
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.