FLORA OF VIETNAM
Orchidaceae
Paphiopedilum concolor (Bateman) Pfitzer

N. Vietnam, prov. Quang Ninh, distr. Hon Gai, Halong bay, Dan Go island. Secondary broadleaved evergreen forest on steep limestone slopes and vertical bluffs on elevations 0-100 m above s.l. Lithophyte forb on vertical shady cliffs of N exposition. Leaves fine light-green/whitish tessellated from above; light greenish, fine spotted with violet from below. Flowers fine apple-sweet smelled, sepals, petals and lip dull yellow, with numerous smallest purple marks. Not rare.
NTH 2631 12 May 1999
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)
Collectors: N.T.Hiep, Averyanov L.