The Fekx Lo\er"s (" 



OAU'ANIOX 



Indusiiun of the reflexed edges, at first 

 reaehing to the iiiidril), or nearly so; later 

 ojjening out nearly flat: fruiting ])innules 

 pod-like; sterile firinds hroad. Rock 

 brakes. ( ' riiploijramma. 





'% 



o. ludusiuni ne\'er 

 formed of the mar- 

 gin of the frond . 

 Sori various. 

 ( 1 ) Fruit-dots olilong. 

 ])arallel with the 

 midrib, somewhat 

 sunken in the 

 t issu e s of the 

 frond. Water-lo\'ing species. Cliain Ferns. JI'oDilii-iirdid. 



(2) Fruit-d o t s 



and indusium 



roundish. 



I n d u s i u m 

 shield-s h a p e d, 

 fixed by the 

 center. Ever- 

 green glossy 

 ferns in rocky 

 woods. Shield Ferns. Polystiduim 



