446 



THE CARBONIFEROUS SYSTEM. 



Fig 166. — Ferns of the Middle Coal Formation. 



A, Odontopteris subcuneata (after Bunbury). 



B, Neuropteris cordata do. 



C, Alethopteris lonchitica. 



D, Dictyopteris obliqua (after Bunbury). 



E, Phyllopteris antiqua, mag. (E^) Nat. size. 



F, Neuropteris cyclopteroides. 



(For other species see Figs. 69 to 72.) 



