658 



CRYPTOGAMIA SCHISMATOPTERIDES. Osmunda. 



O. basilaiis. Spreiigel. auLS. p. l60. 



Icon. SchkuhrJUic. t. 144. 



In low and swampy grounds : Canada to Virginia, and in 



the western territories. % . June, July. v. v. This 



singular fern is about two feet high, 



spectalilis. 4. O. frondibus bipinnatis, pinnulis oblongis obtusiusculis 

 argute serrulatis basi truncatis insequalibus, omnibus 

 alternis, panicula bipinnata fructificante in apice fron- 

 (\\s.— irilld. sp. pi. 5. p.gS. 



O. regalis /3. Sp. pi. J 521. Mich. Ji. amer. 2. p. 273. 



Icon. Pluk. aim. t. 184./. 4. 



In mountain swamps : Canada to Carolina. '2/ . July. 

 V. V. A very elegant species. 



IV. FILICES. 



vulgare. 



virgimanum. 



* 



721. ACROSTICHUM. Gen. pi. 1625. 



1. A. frondibus pinnatis, pinnis alternis oblongo-lanceola- 



tis integerrimis, basi cuneatis aequalibus, omnibus 



acuminatis, superioribus fructificantibus. IFilld. sp. 



pi. 5. p. 1 16, 



Icon. Schkuhrjilic. t. 1. Peliv.Jil. t. S. f. 5. Plum. 



amer. t. 7. Pluk. aim. t. 288./. 2. 

 In deep swamps near the sea-coast : Florida. 1/ . July. 

 V. V. This is the largest of the North American ferni, 

 the leaves being sometimes above five feet long. 



722. POLYPODIUM. Swartz.synop.Jilic.3. 



1. P. frondibus profunde pinnatifidis, laciniis lineari-lan- 



ceolatis obtusis crenulatis approximatis, superioribus 



sensim minoribus, soris solitariis, caudice paleaceo, 



IVilld. sp. pi. 5. p. 172. 

 Icon. Schhthrjilic. t. 11. Plum.Jil. t. J.f. 2. 

 On rocks and old rotten trees : Canada to Carolina. 1/ . 



July. V. V. 



2. P. frondibus profunde pinnatifidis, laciniis lanceolatis 



obtusis integerrimis approximatis, superioribus sensim 

 minoribus, soris solitariis, caudice nudo. Willd. sp. 

 pi. 5. p. 174. 

 Icon. Petiv. Jilic. t. 7. /, 9, Pwm. Amer. t. 36. Jilic. 



