I. FILICES. 



897 



Alsophila aculeata. 



Cyathea. 



Indusium seen in front, 



beginning to open. 



Spoifuigium (mag.)' 



CycUhea. 



Indusium ox>ened, showing 



the sporangia. 



Cyathea. 

 Portion of fructiferous frond. 



Lonchitis. 

 Portion of fructiferous 

 frond. 



V 



\ 



yepkrodium* 

 Portion of fractif erous frond. 



N^hrodium. Nephrodium. 



Sporangium Dehiscing sporan- 

 Glosed (mag.)-. gisun (ma^). 



MaratUa, 

 Portioa of frond (mag.). 



Angiopteris. 



Portion of fructiferous 



frond. 



3m 



tens. 

 Portion of frond (mag.). 



MaraUia, 

 Portion of fructi- 

 ferous frond. 



