FLORA OF VIETNAM Orchidaceae Juss. Cleisostoma rostratum (Lodd.) Seidenf.
N. Vietnam, Bac Can prov., Ba Be distr., Ba Be national park (22°24′44′'N, 105°38′05′'E). Primary dry broad-leaved evergreen forest (with Burettiodendron hsienmu as a main dominant) on very steep slopes of remnant highly eroded limestone ridge at elev. about 500 m a.s.l. Lithophyte and occasional epiphyte on shady cliffs. Very common.