COMPARISON OF PTERIDOPHYTA. 



201 









" 



1 



FRUITI 

 PART 



t 



^ 



Sporangia on 

 sporophylls. All 

 of one kind. 

 Sporangium con- 

 tains 



2 g 



i s 



rt^ C ^ ' 



fill 



git 



11 



. 



o 



S K 



ll 



..3 



-b 



it 



aa 

 II 



S .2 

 S 5 



6 



3 rt O3 



SJq *3 



i -:i 



o 

 B 



!!! 



o > 5 s 

 ^ Mio>:=3 



I s 4ffi 



s = - ? E s 



llrsi! 



oo 







. 



"Sji 



-a "B 

 c'5 



II 



Ili 



S^ 

 S8 





 c-5 



K 



. " ao 

 .2 < rt o 



O 3 





