59 



PLATE XXIX. 



Pecopteris laciniata. 



Lindl. and Hutt. 



(Pecopteris [Alethopteris] muricata.) 



Goepp, 



In many respects this fern is strikingly Sphenop- 

 teridian in form, a fact which may account for the name 

 attached to the original drawing — Sphenopteris macilenta. 

 The venation is well seen in this specimen, an important 

 character which was entirely absent in that figured in the 

 " Fossil Flora," Plate 122. The unusually acute angle 

 at which the veins spring from the mid-ribs of the lobes 

 is particularly well-shown here. 



This fossil was found in the Ben sham shale in Jarrow 

 Colliery. 



Drawing (by Prior) and Plate are both of the natural 

 size. 



