FLORA OF VIETNAM Orchidaceae Phaius longicruris Tsi
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 broadleaved closed forest on very steep rocky slope of karst remnant limestone ridge at elev. 600-700 m a.s.l. Lithophytic forb on shady rocks. Flowers odourless, tepals white, tips with green tint, later yellowish; lip light lilac-violet with whitish irregular venation. Very common.