FLORA OF LAOS Convallariaceae Peliosanthes sinica F.T.Wang & Tang Vientiane Prov., Vang Vieng Distr., Phol Xai village, about 8 km to the W of Vang Vieng town, Phar Poon Mt., around point 18°56’11.5”N 102°20’05.0”E. Dry broad-leaved primary and secondary evergreen forest on very steep rocky slopes and on vertical cliffs of remnant highly eroded rocky limestone mountains composed by solid crystalline limestone at elevation 300-900 m. Terrestrial undershrub with erect not branching stem to 0.6 cm tall in shady place. Leaves dull green on both sides. Fruits glossy blue, ovoid, 0.8-1 cm long. Common at elevation 300-800 m. LA-VN 434 15 March 2013 Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, P.V.The, S.Lorphengsy