83 



PLATE XLI. 



Sphenopteris. Sp. 



We much regret having no information concerning 

 this interesting specimen. It is apparently a most ab- 

 normal form of Sphenopterid in many respects resembling 

 the linear ferns which form so important a group of that 

 assemblage, but in others it seems to claim relationship 

 with S tempter is. In general form, again, it can claim 

 alliance with the Moravian Kulm fern, the Pecopteris 

 divaricata of Gceitert. 



The drawing is by T. Johnson. 



