FLORA OF VIETNAM Orchidaceae Paphiopedilum hirsutissimum (Lindl.) Stein. var. esquirolei (Schlechter) Karasawa et Saito
N. Vietnam, prov. Cao Bang, distr. Ha Lang, municipality Thang Loi, vicinities of Ban Hao (N 22°43′ E 106°40′), about 43 km to E from Cao Bang town. Secondary evergreen broadleaved closed forest on steep bluffs of remnant limestone ridges at 350-400 m alt. Epilite herb on vertical shadow cliffs of NW exposition. Rare.
CBL 694 26 Nov. 1998
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)