XXVIl] NEUROPTERIS 569 



small pinnules on the lower branches are gradually replaced in 

 the upper portion of the specimen by falcate segments. 



Neuropteris macrophylla, Brongniart'- Figs. 354, D, D' ; 372. 



The rachis of the large fronds of this species illustrates the 

 dichotomous habit of many Neuropteris fronds, also the occur- 

 rence on the petiole of large Cyclopteroid pinnules (cf fig. 370). 

 The small piece of a pinna reproduced in fig. 372 shows the 

 slender attachment of the segments, the blunt apex, and the 



Fio. 872. Neuropteris macrophylla, Brongn. 

 From a photograph by Mr Hemingway. 



Neuropteroid venation. Single pinnules of this species may be 

 distinguished from those of N. Scheuchzeri by the blunter apex, 

 the absence of the pair of small Cyclopteroid pinnules on the 

 same branch and by the absence of hairs. N. macrophylla is 

 characteristic of the Upper Coal-Measures of Britain. 



1 For synonymy, see Kidston (88) p. 354. 



