FLORA OF LAOS Urticaceae Pilea sp.nov.? (“scolopendria major”) Vientiane Prov., Kasi Distr., Tam Tai village, about 10 km to the NW of Kasi town (19°12’57”N 102°14’59”E). Remnants of primary and secondary broad-leaved evergreen forest on very steep rocky slopes of remnant mountain composed with highly eroded solid crystalline limestone at elevation 500-650 m. Lithophytic clustering herb on shady vertical cliffs. Locally very common. LA-VN 731 24 March 2013 Coll.: L.Averyanov, N.S.Khang, S.Lorphengsy