FLORA OF VIETNAM Orchidaceae Tropidia angulosa (Lindl.) Blume
N. Vietnam, prov. Cao Bang, distr. Bao Lac, municipality Yen Lac, vicinities of Yen Lac village (N 22°44′ E 105°50′), about 44 km to NWW from Cao Bang town. Primary evegreen closed broadleaved forest on steep mt slopes of limestone ridge at 1200 m alt. Herb up to 0.5 m hg on steep shadow slope. Not rare.
CBL 307 15 Nov. 1998
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)