THE CARBONIFEROUS FLORA. 



127 



FiQ. b2.—Alethopteri8 grandis (Dawson). Middle coal-formation of Nova 



Scotia. 



Fig. bZ.—Cyclopteris (Aneimites) Acadica CDawson), a tree-fern of the 

 Lower Carboniferous, a, Pinnules. 6, Fragment of petiole, c, Re- 

 maina of fertile pinnules. 



