S. Vietnam, Prov. Kon Tum, Distr. Dak Gley, about 10-12 km to the SE of Dak Gley town (4-6 km to the E of Dak Tung village). Open mixed forest with domination of Pinus khesya, P. dalatensis and Lyonia ovalifolia on top of ridges at 1400-1500 m alt. in Ngoc Mi mountain system. Terrestrial and epilite herb. Common. Flowers: sepals and petals light yellow inside, pinkish outside; lip white with deep purple strips and marks, central 2 keels yellow; column white with yellow base and numerous deep purple strips and marks; anther yellow.
VH 2291b 06.12.1995
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5094-93)
Participants: L. Averyanov, N.T. Ban, A. Budantzev, L. Budantzev, N.T. Hiep, D.D. Huyen, P.K. Loc, G. Yakovlev