61 



PLATE XXX. 



Sphenopteris latifolia. 



Brong. Var. 



A handsome form of this variable species. 

 The specimen comes from the Bensham shale in J arrow 

 Colliery. 



The drawing, by Prior, is one-third of the natural 

 size, as marked in our Plate, which is two-ninths of the 

 natural size. 



