DESCRIPTION OF PLATES. PP. IBl 



Plate XXVI. 



Figs. 1-4. Pecopteris pachypteroides, Spec. nov. 

 " 1. Portion of the frond showing incipient teeth 



in the pinnules of the lower pinnge. 

 " l"". Enlarged lower part of the frond showing 



the incipient teeth. 

 " l^ 1". Enlarged pinnae from the upper and middle 



portions of the frond. 

 " 4. Summit of a compound pinna. 



Plate XXVII. 



Figs. 1-3. Pecopteris angustipinna, Spec. nov. 



" 1. Normal form. 



" 1". Enlarged pinnules of the same. 



" 2. Portion of the lower part of frond. 



" 3. Portion of the upper part of the frond. 



" 3*. Enlarged pinnules of the same. 



" 4, 4*. Pecopteris species ? 



" 5, 5". Pecopteris species ? 



" 6. Pecopteris arborescens ? 



Plate XXVIII. 



Figs. 1-4. Pecopteris tenuinervis, Spec. nov. 

 '■ 1. A iwrtion from the lower part of the frond 



showing undulate pinnules. 

 " 1". Enlarged pinnules of the same. 



" 2. Compound pinna from the middle portion 



of the frond. 

 " 2". Enlarged pinnules of the same. 



" 3. Portion from the upi^er part of a compound 



pinna. 

 " 4. Fructified portion of the plant. 



" 4". Pinnules of the same enlarged. 



" 4*, 4*. Sori enlarged. 



XXIX. 



Figs. 1-2. Pecopteris merianiopteroides, Spec, nov, 

 " 2, Summit of a pinna. 



