SPHEXOPTEEIS. 151 



Genus SPHENOPTERIS, Brongniart. 1 

 [Mem. Mus. Hist. nat. Paris, vol. viii. p. 233, 1822.] 



1. Sphenopteris princeps, Pivsl. 



2. Sphenopteris Williamson!, Brongniart. 



3. Sphenopteris Murrayana (Brongniart). 



1. Sphenopteris princeps, Presl. 



[Sternberg, Flor. Vorwelt, vii. p. 126, pi. lix. figs. 12 and 13, 1838.] 

 (PI. XVI. Fig. 2.) 



1838. Sphenopteris prineeps, Sternberg, Flor. Vorwelt, Tii. p. 126, pi. lix. 



figs. 12 and 13. 



Gennaria clyinifufniii, ibid. p. 188, pi. lix. figs. 1-9. 

 Pecopterix obtiiza, ibid. p. 155, pi. xxxii. tigs. 2a-c and 4, b. 

 1841. Sptonopteris patcntinsiina, Gbppert, Gatt. foss. Pflan. p. 73, pi. x. 



fig. 8. 



1849. Coniopteris prineept, Brongniart, Tableau, p. 103. 

 C. patentissima, ibid. 

 Desmophlebis imbricata, ibid. 

 J). obtuna, ibid. 



1856. Sphenopteris modesta, Zigno, Flor. foss. Oolit. vol. i. p. 85. 

 1864. Sphenopteris modssta, Leckenby, Quart. Journ. Geol. Soc. vol. xx. 

 p. 79, pi. x. figs. 3 and 34. 



1874. Cladophlebis modesta, Schimper, Trait, pal. veg. vol. iii. p. 505. 



1875. Sphenopteris modesta, Phillips, Geol Yorks. p. 213, lign. 28. 

 1892. Acrostichites princeps, Fox-Strangways, Tab. Foss. p. 128. 

 1894. Todea princeps, llaciborski, Flor. Krak. p. 18, pi. vi. figs. 22-27. 



Type - specimen. Leckenby's type - specimen of Sphenopteris 

 modesta is in the Leckenby Collection, Cambridge (No. 149). 



Fronds bipinnate, attached to an erect stem covered with 

 imbricate pointed scales ; pinna) linear, tapering to a point, 

 attached at right angles to a comparatively slender rachis, and 

 bearing crowded pinnules with an obtuse apex and an irregularly 

 crenulate margin. The pinnules are at right angles to the pinna) 

 and present a characteristic and somewhat stiff appearance ; the 



1 For an account of this genus vide Seward (94 1 ), p. 104. 



