FLORA OF VIETNAM. Plants of Chu Yang Sin National Park. Orchidaceae. Aphyllorchis pallida Blume. Vietnam, Dak Lak Prov., Krong Bong Distr., Hoa Son Municipality, vicinities of Krong Kmar river, NE slopes of Chu Yang Sin mt system at elevation about 800-1000 m a.s.l. Primary mixed broad-leaved and coniferous forest with Pinus krempfii, Dacrycarpus imbricatus and Dacrydium elatum along ridge edge. Achlorophyllous yellowish ground saprophyte in shady places. Very rare. HLF 5423 28 October 2005. Coll. L.Averyanov, T.V.Thao, N.T.Vinh. Grant from Henry Luce Foundation.