Tab. XT. 



A. Cyathea divergens, Kze. — ^p. 19. 



Fig. 1. Fertile pinna; nal. size. Fig. 2. Segment of ditto, un- 

 der side ; maynified. Fig. 3. Portion of a fertile segment 

 with a sorus ; more magnified. 



B. Cyathea canaliculata, Willd. — p. 23. 



Fig. 1. Fertile pinna; nat. size. Fig. 2. Segment of ditto; 

 magnijied. Fig. 3. Portion of ditto, with a sorus ; more 

 magnified. 



