Yol. 65.] FOSSIL PLANTS PROM THE KENT COALFIELD. 29 



Sphenopteris, Brongniart, 1822. 

 'Sur. la Class, des Veget. Foss.' (Mem. Mus. Hist. Nat. vol. viii) p. 233. 

 Sphenopteris neeropteroides (Boulay). (PI. I, fig. 8.) 



1876. Pecopteris neuropteroides, Boulay, ' Terr. Houill. du Nord de la France 'p. 32 

 & pi. ii, figs. 6-6 bis. 



1886-88. Sphenopteris neuropteroides, Zeiller, 'Flore Foss. Bass. Houill. Valen- 

 ciennes ' p. 70 & i)l. ii, figs. 1-2 a. 



Waldershare Series at 1845 &? 1850 feet. 

 Fredville Series at 1458 feet. 



These specimens are only small fragments of pinnae (PI. I, 

 fig. 8) ; but, so far as one can judge, they agree closely with this 

 species. 



Eremopteris, Schimper, 1869. 



' Traite" Pal. Veget.' vol. i, p. 416. 



Eremopteris cf. E. artemisi^folia (Sternberg). 



1826. Sphenopteris artemisice folia, Sternberg, ' Versucli einer Darstell. d. Flora d. 



Vonvelt ' Heft iv, p. xv, & pi. liv, fig. 1 (1826) ; also Heft vii, p. 58 (1838). 

 1829. Sphenopteris artemisicefolia, Brongniart, ' Hist. Veget. Foss.' vol. i, p. 176 & 



pis. xlvi-xlvii. 



1832. Sphenopteris crithmifolia, Lindley & Hutton, ' Foss. Flora ' vol. i, pi. xlvi. 

 1869. Eremopteris artemisicefolia, Schimper, ' Traite Pal. Veget.' vol. i, p. 416 ]& 



pi. xxx, fig. 4. 

 Waldershare Series at 1933 &? 2297 feet. 



Some fragments of pinnae from the Waldershare Series agree 

 rather closely, as regards both form and nervation, with specimens 

 of this species from the Newcastle & Durham Coalfield. They 

 are, however, too imperfect to be identified with certainty. But 

 their identity with Eremopteris artemisicefolia, hitherto one of the 

 most local of Carboniferous plants, is further rendered probable 

 by the fact that seeds, which are almost certainly the Cardiocarpus 

 acutus of Lindley & Hutton, occur in the same core, though at 

 a lower level. There are strong reasons to believe that C. acutus 

 is the seed of Eremopteris artemisicefolia, although the fact has-. 

 not yet been proved. 



Semina incertse sedis. 



Cardiocarpes, Brongniart, 1828. 



' Prodr. Hist. Veget. Foss.' p. 87. 



Cardiocarpes acetes, Lindley & Hutton (? Brongniart). (PI. I, 

 fig. 5.) 



1833. Cardiocarpus acutus, Lindley & Hutton, ' Foss. Flora ' vol. i, p. 209 & pi. lxxvi. 

 Wa Id er share Series at 2425 feet. 



These seeds (PI. I, fig. 5) are very characteristic, and are 

 frequently associated with Eremopteris artemisicefolia (Sternb.) in 

 the Newcastle & Durham Coalfield. There is a strong probability 

 that this frond belonged to a Pteridosperm, of which this was the 

 seed, but at present it is not possible to prove that such was the 



