FLORA OF VIETNAM Plants of Phong Nha - Ke Bang National Park Orchidaceae Dendrobium spatella Rchb.f. (= D. acinaciforme Roxb. auct.).
Vietnam, Quang Binh Prov., Bo Trach Distr., Hung Trach Municipality, Khe Ba Tanh locality, around point 17°27′24′'N, 106°23′14′'E at elev. 600-700 m a.s.l.
Slightly logged primary closed broad-leaved evergreen forest on slopes of mountains composed with shale, sandstone and occasionally granite, along rocky stream valley.
Epiphyte on tall trees (on Dracontomelon duperreanum, Bischofia javanica, Michelia sp., Chisocheton paniculatus, Cinnamomum sp., Pometia pinnata, Pterospermum spp., Duabanga grandiflora). Not rare.