6. Thelypteris palustris Schott, Gen. Fil. plate 10. 1834.
Marsh fern, thélyptère des marais
Acrostichum thelypteris Linnaeus; Dryopteris thelypteris (Linnaeus) A. Gray
Varieties 2 (1 in the flora): North America, Europe, Asia.
The name Thelypteris thelypterioides (Michaux) Holub has been applied to T . palustris , but A. F. Tryon et al. (1980) have shown that this was a result of an incorrect typification by C. V. Morton (1967).
Thelypteris palustris var. palustris occurs in Eurasia.
Lower Taxon
