Tab. CXXXI. 



A. Pteris (Eupteris) mutilata, i. — p. 164. 



Sterile and fertile fronds ; nat. size. Fig. 1 . Sterile pinna, 

 showing the venation and thickened margin ; maynified. 

 Fig. 2. Portion of a fertile pinna ; magmfied. 



B. Pteris (Eupteris?) triphylla, Ag.—^. l/l- 



Fig. 1. Primary pinna, sterile; nat. size. Fig. 2. Portion of a 

 pinnule of the same, to show the venation ; magnified. 



