FLORA OF LAOS Orchidaceae Phalaenopsis gibbosa H.R.Sweet
Luang Prabang prov., Pon Xay distr., Houay Man village, Phou Pak Sang Mountain, around point 19°59′03.8′'N 102°25′09.0′'E.
Degraded primary evergreen and semideciduous forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 1000-1150 m a.s.l.
Epiphyte in shady places in mossy rocky mountain tops. Flower tepals yellow-orange, lip white. Very common.