NEUROPTEETDIUM. 1 1 9 



It may be added that a species described by Johnston l from 

 Hobart, Tasmania, in 1887, as Neuropteris tasmaniensis, Johnst., is 

 stated by that author to be " near to N. valida, Feist." .No figures 

 of this species are, however, published, and the age of the beds is 

 not very clear. 



Although the fronds described by Carruthers as Odontopteris 

 Plantiana are now known to belong to this genus and species, 

 and are the earliest described examples, I have maintained 

 Feistmantel's specific name here, since any change would tend to 

 create great confusion. Zeiller 2 was the first to point out the 

 identity of these fossils. 



Fronds of Neuropteridium validum from India. 



V. 227. PI. VI, Fig. 1. 



A basal portion of a frond showing a number of oval or orbicular 

 pinnules, rounded at the apex, on either side of a rachis. The 

 pinnules at the base of the frond are very small, entire, almost 

 semicircular, and are attached by the whole base. The larger, 

 oval pinnules are somewhat lobed, and the upper portion of the 

 base is free from the rachis. The nervation is fairly clear, the 

 nerves radiating from the base with frequent dichotomy. Other 

 and smaller fragments of fronds occur besides that figured. 



? India. Pres. by C. W. Wilmot, Esq., 1883. 



V. 227«. A small fragment showing the rachis, and three 

 nearly perfect pinnules, in which nervation is very clear. There is 

 no record of the locality with either of these specimens, but there 

 is little doubt that they were derived from India. 



? India. Pres. by C. W. Wilmot, Esq., 1883. 



Fronds of Neuropteridium validum from Brazil. 



V. 228tf, Figured by Carruthers (69), pi. vi, fig. 2. 



A portion of a frond showing lobed pinnules on one side of the 

 rachis. The nervation is fairly clear, the nerves being fine, close, 

 and dichotomising. The impression of the impersistent median 

 nerve can just be made out at the base of the pinnules. 



Eio Grande do Sul, Brazil. Pres. by N. Plant, Esq., 1869. 



1 Johnston (87 2 ), p. 171. ' Zeiller (95 1 ), p. 963 ; (95 2 ), p. 616. 



