PLATE XXVI. 

 Pbcopteeis testita Lx. 



(Page 91.) 



Fig. 1. Pinna Bhowiug strong puuctate rachis. U. S. Nat. Mus., 5808. 



la. Detail of portion of same enlarged to show villosity and nervation. x2. 



Pecopteris dentata Brongn. 



(Page 75.) 



Fig. 2. Small pinnaj in which the lohes and young-pinnules are unusually connate and obtuse. U. S 

 Nat. Mus., 5641. 



3. Characteristic aspect of large pinna; with young pinna; and pinnatifid pinnules of this spe- 



cies. U. S. Nat. Mus.. .5642. 

 3a. Enlarged detail of apes of one of the lateral pinna; of the same specimen. The aspect of the 

 lamina and border are not well shown. x2. 



4. Enlarged detail of small pinna of U. S. Nat. Mus., 5621, shown in PI. XXVII. x2. 



362 



