524 



PTEBIDOSPERMS, ETC. 



[CH. 



is shown in fig. 350 on a slightly reduced scale, was originally 

 figured by Schimper fi:om an unusually good example in the 

 Strassburg Museum. Schimper's drawing hardly does justice 

 to the original specimen. 



A frond bearing rather narrower pinnules, alternately 

 placed on the rachis, which Fritsch has described as Cardiopteris 

 Hochstetterii va,T. franconica from the Culm of Thuringia, bears 

 a close resemblance to Neuropteridium validum but differs in 

 the entire margin of the pinnules. An Upper Carboniferous 



Fio. 350. Cardiopteris frondosa (Goepp.). (J nat. size. After Sohimper.) 



species from Russia described by Grigoriewi as Neuropteris, cf. 

 cordata var. densineura, represents another form of similar habit. 

 Schuster' has recently proposed a new generic name 

 Ulvopteris for a fragment of a pinna from the Coal-Measures 

 of Dudweiler in Germany bearing large pinnules, which he 

 compares with those of Cardiopteris and species of Rhacopteris. 

 The specimen appears to be indistinguishable from some of 



' Grigoriew (98) PI. iv. 



- Schuster (08) p. 184. 



