82 CATALOGUE OF FOSSIL PLANTS 



this specimen shews enough to prove that Cyclopteris leaves 

 are only rachial pimise represented by a large cycloid leaf, and 

 often placed opposite to a well-defined pinna of a Neuropteris. 

 Loc. — Shale above the Bensham Seam, Jarrow. (H. C. 223). 



146. In this specimen the rachis is considerably unfolded ; 



there is a distinct impression of a Cyclopteris leaf ; the central 

 portion shews numerous traces of nervation, and near the 

 upper portion of the rachis may be observed, with a lens, 

 numerous impressions of the nervation of Neuropteris leaves. 

 Loc. — Shale above the Bensham Seam, Jarrow. (27. C. 227). 



147. Large circular mass, shewing the rachis curled up ; 



visible traces of the vernation of a Neuropteris leaf. 



Loc. — Shale above the Bensham Seam, Jarrow. (27. C. 230). 



148. This specimen shews a rachis with a pinna coiled up, 



and apparently attached to the rachis, but the central part is 



obscured with carbonaceous matter. 



Loc. — Shale above the Bensham Seam, Jarrow. (27. C. 235). 



149. Very indistinct impression of an oval mass of a Cyclop- 

 teris in vernation ; traces of the nervation are visible on parts 

 of the impression. 

 Loc. — Shale above the Bensham Seam, Jarrow. (27. C. 219). 



150. On this slab are two oval masses of coiled up rachis and 



leaves of Cyclopteris. On the surface of each carbonaceous 

 mass are distinct traces of the stems of pinnee and the nerva- 

 tion of large Cyclopteris leaves. 

 Loc. — Shale above the Bensham Seam, Jarrow. (27. C. 218). 



Remarks. — In the unarranged, unassorted portion of the Hut- 

 ton Collection about eighteen specimens were found, which 

 appeared at first sight like oval masses of carbonaceous matter 

 only. They were found on careful examination to be rolled-up 

 fragments of fern fronds, some of which under the lens shewed 

 imperfectly preserved traces of Cyclopteris leaves and Neurop- 

 teris pinnules, leaving no doubt that they were parts of some 

 large ferns which had been violently torn from their rhizome in 

 an early stage of their vernation. Enough is shewn in the 

 specimens to determine them as belonging to some species of 

 Neuropteris, but the pinnae and pinnules are not sufficiently 

 expanded to define what particular species they represent. Here 



