N. Vietnam, Bac Can prov., Na Ri distr., Kim Hy municipality, vicinities of Lung Hin Con village (N 22°17′ E 106°03′), 27 km to 55° of Bac Can city. Primary evergreen mixed mossy forest with Pseudotsuga, Keleleeria and bamboo on top of karst remnant limestone ridge at elev. 750-800 m a.s.l. Tree 20-25 m hg. Occasional codominanthe of 1 forest stratum along tops of ridges in the area.