3(i 



The 1'eh\ I o\ek"s Companion 



(3) Sori in roundish or elon- 

 gated masses. 

 Indusiuni l)road, nearly con- 

 tinuous, fronds mostly smooth, 

 somewhat leathery, ])innate. 

 Rock species. Clifi' brakes. 

 Pellwa. 



Sporangia in oblong 

 sori under a reflexed 

 tooth of a pinnule; 

 indusiuni b r o a d; 

 rachis dark and shin- 

 ing. Maidenhair. 

 Adiantitm. 



Indusiuni narrow, 

 .s e 1 d o m continuous, 

 formed hy the margin 

 of sc])arate lobes or of 

 the whole ])iimules; 

 o f t e n inconspicuous, 

 fronds usuajlx' hairy. 

 Lip FcT'ns. CliriUtnllies. 



