H' CKYPTOGAMIA FILICES. Aspldium. ^^1 



i^T^ ** Frondilus pinnatis. 



->2. A. frondibus pinnatis, pinnis lanceolatis falcatis acutis acrostichoides 

 I f^" ciliato-serratis, basi superiore mucronato-auriculatis, 

 'JLj^ inferiore cuneatis, superioribns fructificantibus mino- 

 ^R^ ribus, stipite rachique paleaceis, soris solitariis demum 

 «I "4 confluentibus. TVilld. sp. pi. 5. p. 225. 

 ^ .'■ A. auriculatum. Schkuhrjilic. 31. /.30. excl. synon. 

 * Nephrodiuna acrostichoides. Mkh.Ji. amer. 2. p. 2(57. 

 On rocks, in shady low places : New England to Caro- 

 lina. 11 . June — Aug. v. v. Resembles iV. auricu- 

 latum. 



*** Frondilus sulbipinnatis ; indusiis dimidiatis renifor' 

 mihus. 



noveboTO' 

 cense. 



i 3. A. frondibus pinnatis, pinnis lineari-lanceolatis pinnati- 

 'iidis, laciniis oblongis obtusiusculis subintegerrimis 

 ciliatis, soris marginalibus, stipite laevi. — iVilld. sp. 

 5*' pi. 5. p. 243. 



A. thelypterioides. Sivartx. iynop.filic. 57- 

 Nephrodium thelypterioides. Mich. ft. amer. 2. p. 267. 

 Polypodium noveboracense. Sp. pi. 1552. 

 Icon. Schkuhrjilic. t. 46. 



On river sides and the banks of ditches and ponds : Ca- 

 nada to Carolina. 11 . July. v. v. 



4. A, frondibus pinnatis, pinnis lineari-lanceolatis pinnatifi- Thelypteris. 



dis glabris, laciniis ovatis acutis integerrimis, soris 

 marginalibus contiguis demum confluentibus. JVilld. 

 sp. pi. 5. p. 24g. 



Polypodium Thelypteris. Mant. 505. 



Polystichum Thelypteris. Roth Ji. germ. 3. p. 77. 



Acrostichum Thelypteris. Sp.pl. 1528. 



Icon. Schkuhr Jilic. t. 52. Fl. dan. 76O. Engl. lot. 

 1018. 



In low grassy fields and swamps : Canada to Virginia. 

 % . July. I'. V. It is very seldom found with fructi- 

 fications ; the leaves are smaller than in the pre- 

 ceding. 



5. A. frondibus lanceolato-ovatis glabris pinnatis, pinnis cristatum. 



subcordato-oblongis pinnatifidis, laciniis oblongis ob- 

 tusis dentato-serratis, stipite paleaceo. — If^illd. sp. 

 pi. 5. p. 252. 



Polypodium cristatum. Sp.pl. 1551. 



Icon. Schkuhrjilic. t.37, JJxel. act. holm, 1787. 1. 9. 



