FLORA OF LAOS Convallariaceae Peliosanthes densiflora Aver. et N.Tanaka sp.nov. Vientiane Prov., Kasi Distr., Thong Mout village, Num Pong Mt., around point 19°21’46.9”N 102°09’29.8”E. Primary and secondary broad-leaved evergreen forest on steep shale slopes along stream at elevation about 900 m. Terrestrial herb with leaves to 1 m long. Petiole 30-40 cm, leaf blade glossy uniform green on both sides, 14-18 cm long, 7-10 cm wide. Not rare. LA-VN 722 22 March 2013 Coll.: L.Averyanov, N.S.Khang, S.Lorphengsy