FLORA OF VIETNAM Orchidaceae Holcoglossum wangii Christenson
N. Vietnam, prov. Cao Bang, distr. Thach An, about 28 km to SE from Cao Bang town (N 22°29′ E 106°28). Primary evergreen broadleaved closed forest on steep slopes of remnant limestone ridge at 300-450 m alt. Epiphyte. Flowers odourless, white; gypochile yellow with brown stripes, base of white epichile with yellow and purple keels. Not rare.
CBL 957 06 Dec. 1998
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)