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. Tree 8-10 m hg. Flowers with strong sweet-spice smell, light pinkish-white with deep crimson spots at the base of tepals. Very common. Codominante of 2 forest stratum.
CBL 1460 16 April 1999
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)