F LO R A OF V IE T N A M Urticaceae Elatostema sp.? Dien Bien Prov., Muong Cha Distr., Hua Ngai Municipality, Ha La Chu Village, around point 21°53’46”N 103°10’ 17” E. Highly degraded primary evergreen broadleaved humid forest on very steep slopes of remnant mountains composed with solid limestone at elevation 1100-1400 m a.s.l. Lithophytic herb on shady mossy cliffs. Abundant. CPC 1920 07 April 2011 Coll.: L.Averyanov, P.K.Loc, N.Q.Hieu, N.T.Vinh.