Dien Bien Prov., Tua Chua Distr., Sin Chai Municipality, around point 22°03′38”N 103°19′56”E. Primary humid evergreen broad-leaved forest on very steep rocky slopes and on tops of remnant mountain composed with highly eroded marble-like solid crystalline limestone at elevation 1350-1500 m a.s.l. Epiphyte. Occasional. CPC 982a/3 14 December 2010 Coll.: L.Averyanov, P.K.Loc, P.V.The, N.T.Vinh.
Fl. under cultivation at August 2013. Flowers with strong unpleasant smell; median sepal and petals dull yellow with dark purple-brown margin and small spots; lateral sepals orange-brown with dark orange-brown marks; lip light yellow with many small purple marks; column yellow with purple-brown stripes; anther pink to light dirty purple. L.Averyanov. Photos. Associated living specimens: CPC 0982a/01 Liparis sp. CPC 0982a/04 Bulbophyllum sp. CPC 0982a/08 Bulbophyllum sp. CPC 0982a/11 Phalaenopis manii? CPC 0982a/12 Sunipia andersonii CPC 0982a/14 Bulbophyllum sp. (Sect. Micromananthe) CPC 0982a/17 Bulbophyllum sp. CPC 0982a/18 Vanda sp.?