719 Minuartia biflora (L.) Schinz & Thell.

The map shows the distribution of this widespread, arctic-montane species and the closely related M. obtusiloba (Rydb.) House in the W. and NW. American mountains and, finally, M. marcescens (Fem.) House in a restricted area in eastmost N. America. M. biflora belongs to the circumpolar plants (Hultén, Circumpol. Il, p. 68 and map 59). Cf. also Meusel et al. 1965, map p. 149.