FLORA OF VIETNAM Convallariaceae Tupistrapatula Aver., N. Tanaka et K.S. Nhuyen Isotype Ha Giang Prov., Bac Me Distr., Thuong Tan municipality. Primary broad-leaved humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 1200-1285 m a.s.l. around point 22°38’19.0’’N 105°17’06.5’’E. Terrestrial herb on mountain shady slope in very wet place. Old flowers dull yellowish, then entirely black. Not common. 16 November 2014 CPC 7492 Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, T.Maisak, L.Osinovetz (holotype: Herbarium of the Center for Plant Conservation, Hanoi)