PLATE XII. 



Figs. 1,2. Acroafichidca rlwmbifoliua, spec. nov. Pages 29 to 32. 



Fig. 1. A common form of the sterile pinnules with prolonged tips. 



Fig. la. Pinnules of Fig. 1 magnified to show nervation. 



Fig. 2. Portion of the upper part of a compound sterile pinna, where the ultimate piuna are 

 becoming simply lobed. 

 Figs. 3,3a. Acroatiehidis micrvphyllus, spec. nov. Pages 33 to 34. 



Fig. 3. Gives the largest form seen of this species. 



Fig. 3o. Pinnule of Fig. 3, magnified to show nervation. 



