Phongsali Prov., Muong May Distr., around point 21°12′32”N 102°53′44”E.
Highly destroyed primary dry evergreen broad-leaved forest along tops of hill ridge composed with shale at elevation 1250-1400 m a.s.l.
Epiphyte on old mossy trees. Flowers with strong chocolate fragrance, tepals olive-yellowish with dark brown tessellation, lip dull brown, side lobes and column dull yellowish. Not rare.
CPC 2432 22 April 2011 Photos. Coll.: L.Averyanov, P.V.The.