146 CIABOPHLEBIS. 



1850. Neuropteris loUfoUa, Unger, Gen. spec. foss. p. 86. 



1854. Fecopteris loUfoUa, Morris, Brit. Fosb. p. 16. 



1856. Fecopteris hhifolia, Zigno, Flor. foss. Oolit. vol. i. p. 131. 



Neuropteris undiilata, ibid. p. 124. 

 1864. Neuropteris lobifolia, Leckenby, Quart. Journ. Geol. Soo. vol. xx.p.76. 



N. iindulata, ibid. 

 1869. Alethopteris lobifolia, Sobimper, Trait, pal. veg. vol. i. p. 567. 



Sphenopteria undulata, ibid. p. 376. 



1874. CladopMeUs undulata, Schimper, loc. cit. vol. iii. p. 505. 

 G. lobifolia, ibid. 



1875. Fecopteris lobifolia, Pfiillips, Geol. Yorks. p. 210, pi. viii. fig. 13. 

 F. imdulata, ibid. p. 211. 



1877. ^Alethopteris lobifolia, Feistmautel, Pal. Ind. (77'), pi. iii. fig. 1- 

 1892. Alethopteris lobifolia, Bartholin, Bot. Tid. Bot. pi. viii. figs. 1 and 2. 



Fecopteris lobifolia, Fox-Strangways, Tab. Foss. p. 133. 



F. VMdttlata, ibid. 

 1894. Dicksonia lobifolia, Eaciborski, Flor. Krak. p. 177, pi. xi. figs. 1-7 ; 

 pi. xii. figs. 1-6. 



Frond bipinnate. Pinnse long, linear acuminate, and spreading, 

 given off from the rachis approximately at right angles. Pinnules 

 linear, attached by a portion of the base, apices more or less acute, 

 the margin usually slightly lobed ; the basal pinnule on the lower 

 side of each pinna is characterized by its greater breadth. [I^one 

 of the specimens in the Museum Collection afford any evidence as 

 to the character of the soii, but a small piece of a pinna in the 

 Stockholm Museum (Text-fig. 23) bears indications of marginal 

 sori ; the data, however, are insufficient to enable us to determine 

 the probable position of the species.] 



Some large and well-preserved examples of Cladophhhis hhifolia 

 have been figured by Eaciborski ^ from the Jurassic rocks of 

 Cracow. Among the specimens in the British Museum referred 

 to this species there is a great difference in the size of the 

 pinnules, but this is, I believe, largely due to the imusual length 

 of the pinnse, which are characterized by a gradual decrease in the 

 length of the ultimate segments towards the distal end. Some of ■ 

 the larger pinnee bear a resemblance to Todites Williamsoni, and 

 a separation of the two types is not always easy ; Cladophlebis 

 hhifolia is usually recognizable by the narrow bases of the pinnules, 

 and by the spreading and open habit of the fi'ond. 



' Eaciborski (94), pis. xi. and xii. 



