V] 



CEPHALOPTERIS 



63 



1 1/ 





Fig. 36. Cephalopteris mirabilis, Nath., from the Upper Devonian of Bear 

 Island. Figures 1— i, fertile shoots (1-3 nat. size, 4 x §). Figure 5, sterile foliage 

 (nat. size). After Nathorst (1902). 



