Bulbophyllum Section Kainochilus Schltr.
Plants large; pseudobulbs bifoliate (exception B. viguieri); flowers large or very large, to at least 8 mm long; sepals free; labellum very barbate, often longly lingulate-caudate; column longer than wide, nearly always provided marginally (exception B. endentatum) below the stelides, with a more or less developed tooth or lobe; stelides large; anther bearing a more or less developed appendage. Capsule nearly sessile.
World Checklist of Monocotyledons. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/monocots/ accessed 17/02/2015