734 Stellaria longifolia Mühl.

This boreal-montane species is widely distributed in Eurasia and N. America. A differentiation between S. diffusa Schlecht. in Eurasia and S. longifolia Mühl. and S. atrata (J. W. Moore) Boivin in N. America is proposed by Boivin (Sv. Bot. Tidskr. 47 /1953, p. 43 ff.). The species s. lat. belongs to the circumpolar plants (Hultén, Circumpol. Il, p. 102 and map 94). Cf. also Meusel et al. 1965, map p. 143.