71 Gymnocarpium dryopteris (L.) Newm.

Syn.: int. al. Dryopteris linnaeana C. Chr., Lastrea dryopteris (L.) Bory

This slightly variable species is widely distributed in Eurasia and N. America. A few varieties are distinguished (var. disjunctum Ledeb., var. longulum C. Chr.). They are not mapped separately. The species s. lat. belongs to the circumpolar plants (Hultén, Circumpol. I, p. 116 and map 108). Cf. also Meusel et al. 1965, map p. 16.