FLORA OF VIETNAM Tiliaceae Burretiodendron hsienmu (Chung et Hou) Chung et Miav.
N. Vietnam, prov. Cao Bang, distr. Thach An, about 25 km to SSE from Cao Bang town (N 22°27′ E 106°22). Primary evergreen closed semideciduous forest on tops of remnant limestone ridge at 500 m alt. Evergreen tree up to 25-30 m hg. Dominante of primary broadleaved forests on limestone mt. Large trees nearly extinct all over the area due to logging for very valuable wood illegally exported to China.
CBL 916 05 Dec. 1998
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)