FLORA OF VIETNAM Orchidaceae Vandopsis gigantea (Lindl.) Pfitz.
N. Vietnam, prov. Bac Can, distr. Ngan Son, Wind Pass on road Hanoi - Cao Bang (N 22°25′ E 105°55′) at about 700 m elev. Large epiphyte or lithophyte. Flowers yellowish with purple tint outside tepals, lip yellowish, tepals with circular dull pink-brown spots, later flowers dull yellow, not smelled. Collected from plants offered for sale by local dealers along road. Not rare ?
CBL 1261 11 April 1999
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)