172 



PTERIDOSPEBMS 



[CH. 



Kidston from the Calciferous sandstone of Scotland as E. Mac- 

 conochii^ is now believed by that author to be generically distinct^- 

 With the exception of the unsatisfactory specimen reproduced in 

 fig. 443, B, we have no information with regard to the habit of 

 the stem to which the Eremopteris leaves were attached. 



WARDIA. White. 



Wardia fertilis (White). Another example of a fern-like 

 frond bearing seeds is afforded by specimens from the Lower 



Fig. 445. Wardia fertilis (White). A, sterile portion of frond; B, D, enlarged 

 pinnules; C, seed. (After White. A, ca, nat. size; B— D, x 2.) 



Pottsville series of Virginia (correlated with the Millstone grit 

 of British geologists) described by Mr David White^ as Aneimites 

 (Wardia) fertilis. The compound fronds usually referred to the 



1 Kidston (83) B. p. 540, PI. xxxn. fig. 3. 



^ White refers some fronds from the Missouri Coal Measures to Erenwpteris, 

 but their generic identity with the type-species is open to doubt. White (99)b! 

 P- 16. 8 White (04) B. 



