AN ENUMERATION OP CULTIVATED PEENS. 



149 



generally below its apex. Receptacles punctiform. 8ori round. 

 Indusium orbicular or subreniform. 



1. Vernation fasciculate, caudex erect. 



(Polystichum verum.) 



* Fronds pinnate. 



1. P. acrostichoides, Schott. Aspidium 



acrostichoides, Sw.; Loive's Ferns, 



6, t. 19. Aspidium auriculatum, 



Sclik. Fil. t. 30. North America. 

 '2. P. falcinellum, Presl. Aspidium falci- 



nellum, Sw.; Lowe's Ferns, 6, t.7. 



Hook. Fil. Exot. t. 53. Madeira. 



3. P. mucronatum, Presl. Aspidium 



mucronatum, 8w. ; Schk. FiL 

 t. 29 B, C; Hook. Sp. Fil. 4, 

 t. 216. Jamaica. 



4. P. Lonchitis, Eotii; Sc]iott,Gen.Fil.t9; 



Lindl. and Moore's Brit. Ferns, 

 t 9 ; Sowerby's Ferns, 1. 15. Poly- 

 podium Lonchitis, Linn.; Eng. 

 Bot. t. 797. Aspidium Lonchitis, 

 Sw. ; Schk. Fil. t. 29 ; Hook. 

 Brit. Ferns, t. 9. Europe, 

 Britain. 



5. P. trianguluxn, Fee. Polypodium 



triangulum, Linn. (Plum. Fil. 

 t. 72). Aspidium triangulum, 

 Sw.; Hook. Fil. Exot. t. 33. 

 Aspidium trapezoides, flf,. As- 

 pidium mucronatum, Lowe s 

 Ferns, 6, t. 31 B (non Sw.). 



Var. laxum, Lowe's New Ferns, p. 143. - 

 West Indies. 



6. P. obliquum, /. 8m. Aspidium obliquum, Don. Aspidium 



csespitosum, Wall. ; Hook. Sp. Fil. 4, t. 213. Nepal, 

 Japan. 



** Fronds bipinnate. 



7. P. aculeatum, Roth; Lindl. and Moore's Brit. Ferns, 



1. 10 ; Sowerty's Ferns, 1. 17. Polystichum aculeatum, 



side. No. 1 1 . 



