N. Vietnam, prov. Cao Bang, distr. Ha Lang, municipality Thang Loi, vicinities of Lung Sam village (N 22°45′ E 106°42′). Secondary open semideciduous broadleaved forest along tops of remnant karst limestone ridge at 650-700 m elev. Tree up to 25 m hg, remnant element of extinct primary forest. Not ripe fruits pink. Common on tops and slopes of ridges.
CBL 1687 24 April 1999
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)