666 



CRYPTOGAMIA FILICES. 



726. STRUTHIOPTERIS. Willd.inmag.ges. natjr. %. 

 her I. I8O9. p. 160. 



pensylvanica. 1. S. frondibus sterilibus blpinnatifidis, laciniis integerri- 

 mis obtusis, infima elongata acuta. JVilld. sp. pi. 5. 

 p. 289- 



Onoclea nodulose. Schkuhr fiUc. p. p6. t. 104. 



In Pensylvania. Muhlenberg. 1/. +. Resembles 

 iS. germanica. 



rhhophyllum. 



angustifoli- 

 uin. 



727. xVSPLENIUM. Swartz.synop.filic.p.A. 



1. A. frondibus lanceolatis stipitatis subcrenatis, basi auri- 

 culato-cordatis, apice Icngissimo lineari-filiforrae radi- 

 cante. JVilld. sp. pi. 5- p. 305. 



Icnn. Pluk. aim. t. 105./. 3. Feiw. gaxoph. t. 105./. 7. 



Morii. hist. 3. s. 14. t.5.f. 14. 

 On wet shady rocks : Canada to Carolina, 1/ . July. 



v.v. This fern is highly ornamental to rock-works, 



and very singular in its striking root at the elongated 



points of the leaves. 



2. A. frondibus pinnatis, pinnis alternis, superioribus sub- 

 oppositis, lineari-lanceolatis subrepandis, basi superiore 

 truncatis, inferiore leviter rotundatis. IV Hid. sp. pi. 5. 



p. 313. 

 A. pycnocarpon. Sprengel. anleit. 3. p. 112, 

 Icon. Schhuhr /die. t. 67. & 6y. Mom. hist. 3, s. 14. 



t. 2. f. 25. 

 In shady woods, on the banks of rivers : western parts 



of New York and Pensylvania. 1{. . July, ?;. v. A 



very elegant fern about a foot high. 



eheneum. 3. A. frondibus pinnatis, pinnis sessilibus lanceolatis serrn- 



latis basi cordatis, sursurn auriculatis. Willd. sp.pl. 5. 

 p. 329. 

 A. polypodioides. Swnrlz. synop. fiUc. JQ. ^272, 

 A. trichomanoides, Mich.fl. anier. 2. p. 265. 

 Acrostichr.m platyncuron. Sp. pi. 1527. excl. synon. 

 Icon. Schkuhr Jilic. t. 73. Pluk. aim. t. 287. /. 2. et 



t. Sg.f 8. Moris, hist. 3. s. 14. t. 2./ 12. 

 In clefts of rocks : New England to Carolina. 1/ . July. 

 V. V. A small species. 

 welanocau- 4. A. frondibus pinnatis, pinnis subrotundis obtusis crena- 

 lon. tis basi cuneatis, stipite discolore. Willd. enum. IO72, 



Willd. sp. pi 5. p. 332. 



