FOSSIL FLORA. 25 



PLATE IV. 



Fossil Fern Leaves. 



Figs. 1, & 2. An ironstone nodule, split asunder, showing an inclosed fern-leaf {^Alethopteris 

 lonchitidis, of Sternberg) ; from the coal-beds of Newcastle. 



Figs. 3, & 4. The corresponding parts of another nodule, containing a fern-leaf of a different 

 kind (Neuropteris). 



Fig. 5. A very beautiful fossil fern {CAeilanthes microlobus, of Goppert ; Sphenopteris, of 

 Brongniart) ; from the coal formation. 



Fig. 6. A slab of coal-shale with fronds of ferns (Alethopteris Serlii, of Goppert) ; from 

 Dunkerton. 



Fig. 7. A beautiful fern (Pecopteris) in coal-shale ; from Newcastle. 



