FLORA OF VIETNAM Orchidaceae Calanthe triplicata (Willem.) Ames
N. Vietnam, prov. Son La, distr. Moc Chau, municipality Chieng Hac, vicinities of Co Liu village (N 20°51′ E 104°38′). Primary evergreen broadleaved wet forest on very steep slopes and bluffs of remnant karst limestone ridge at 900-1100 m elev. Terrestrial and lithophyte forb on steep shady slopes. Flowers white, lip with brightly red spot at the center. Very common.
NTH 2954 29 May 1999
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)