PLATE IT. 



^ig. 1. Cyclopteris (ARCH.EOPTERIS) Lesctjriaka. 



la. A part of a frond, upper side, reduced somewhat more than 



one-eighth diameter in size. 

 1&. One of the pinnules magnified, to show the nervation 

 Ic. A small part of the rachis magnified, to show its ru-ose 

 character. '^ 



