Portion of mature Frond— under side, 



ASPIDIUM THELYPTERIS. 



SwARTZ. Smith. Hooker and Arnott. Mackay. 



SCHKUHR. WiLLDENOW. SPRENGEL. 

 PLATE XVIII. VOL VI. 



Lastrea thelyjpteris, 



li it 



Aspidium palustre, 

 Acrostichum thelypteris, 

 Polypodium ihelypteris, 



" palustre, 



PolysticJium tlielypteris, 

 Nephrodium " 



Athyrium " 



Hemestheum " 



Dryopteris " 



Thelypteris palustris. 



Peesl. Deakin. Babington. 



JN'ewman. Mooee. Soweeby. 



GrEAT. 



LiNNJEUs. Bolton. 



LiNNiEUS. 



Saltsbuey. 



EOTH. 



Steempel. 

 Speengel. 



Newman. 



Gi-EAY. 



SCHOTT. 



Aspidmm — The Shield Fern. Thelypteris — Lady-Fern. 



In the Section Lastrea of Authors. 



The Marsh or Female Bnckler Fern is an interesting bog- 

 growing species. 



A widely-spread though local British Fern, less common in 

 Ireland, and only found in one locality in Scotland, namely. 



