98 CLADOPHLEBIS. 



V. 22020 and V. 2373. Terminal portions of a frond. Pinnae 

 opposite or sub-opposite. The racliis appears to be winged. 

 Pinnules alternate, dentate towards their apices, with clearly 

 marked venation. 



The larger pinnules are not quite so acutely pointed as in the 

 majority of specimens, but the terminal parts of the pinnae show 

 the usual serrate form. Cf. the apical portion of V. 2794, PI. VIII. 

 Ecclesbourne. Ru/ord Coll. 



V. 22025. Another terminal piece, but with shorter and more 

 falcate pinnules. Ecclesbourne. Rufford Coll. 



V. 2206. The two specimens with this registered number show 

 pinnules with distinct venation ; some of them are falcate and with 

 dentate margin. Here, as in many other specimens referred to 

 this species, there is a variation in the shape of the pinnules, some 

 being falcate, others straight, but all attached to the axis of the 

 pinna by the entire base. Ecclesbourne. Rufford Coll. 



V. 2225. Curved rachis ; pinnae with clearly preserved pinnules 

 showing a distinctly dentate margin. Ecclesbourne. Rufford Coll. 



V. 2372. Portion of a frond, 10 cm. long. Pinnules distinct; in 

 some the falcate character is well shown, and in those of the 

 lower pinnae there are signs of a dentate margin. 



V. 23720. Broad curved rachis. Some of the large pinnules 

 distinctly falcate with dentate margin. Ecclesbourne. Rufford Coll. 



V. 2175, V. 2187, V. 2191, V. 2201, V. 2217, V. 2220, 

 V. 2226, V. 2371, V. 2378, V. 2379, V. 2736. Ecclesbourne. 



Rufford Coll. 



52942. Ecclesbourne. Presented lyJ. E. R. Peyton, Esq., 1886. 



These specimens are referred to the same species, C. Albertsii. 

 Some of the larger pinnae, e.g. V. 2371, suggest Alethopteris 

 Huttoni, Schimp., 1 and possibly this species may have to be 

 included as a synonym under C. Albertsii (Dunk.). 



1 Schenk, Palaeontographica, vol. xix. p. 217, pi. xxiv. fig 1. 



