254 ON WOODSIA. 



Acrostichum ilvense. Linn. 8p. PL ed. 2, p. 1528. 

 Nephrodium lanosum. Micliaux, Amer. 2,j». 198. 

 Habitat in rupibus Europse et Americse borealis. (v. v.) 



%■ 



2. hyperhorea. W. frondibus pinnatis, pinnis triangu- 

 laribus oblongisve inciso-pinnatifidis : lobis integerrimis 

 paucifloris : antico baseos productiore. Tab. 38 (XI). 



Polypodium hyperboreum. Swartz, Synop. Ml. 39. 

 Willden. 8p. PI. h,p. 197. Eng. Pot. 2023. 



Polypodium arvonicum. Smith, Fl. Prit. 3, p. 1115.* 



Polypodium ilvense. Witheriny, Arrany. ed. 3, t. 3, 

 p. 774. 



Acrostichum hyperboreum. Liljeblad in Act. Stock- 

 holm. 1793,^. 201. t. 8*. 



Acrostichum alpinum. Polton, Ml. Prit. 76, t. 42. 



Ceterach alpinum. Lamarck et BecandoUe, Fl. Fran. 2, 

 p. 567. 



Habitat 'm Europse alpibus (v. v.) ii. 



