FLORA OF VIETNAM Orchidaceae Dendrobium porphyrochilum Lindl
N. Vietnam, prov. Cao Bang, distr. Bao Lac, municipality Yen Lac, vicinities of Yen Lac village (N 22°44′ E 105°50′). Primary mixed semideciduous forest (with domination Keteleeria chinensis) along tops of remnant karst limestone ridge at 1450-1500 m elev. Epiphyte. Flowers: tepals light green with purple nerves, lip light green with purple stripes at the base and uniformly deep green epichile, column light green, anther white. Rare.
CBL 1484 16 April 1999
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)