SPHENOPIEEIS. 151 



Genus SPHENOPTEMS, Brongniart.i 

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



1. Sphenopteris princeps, Piesl. 



2. Sphenopteris "Williamsoni, Brongniart. 



3. Sphenopteris Murrayana (Brongniart). 



1. Sphenopteris princeps, Piesl. 



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



(PI. XVI. Pig. 2.) 



1838. Sphenopteris princeps, Sternberg, Plor. Vorwelt, vii. p. 126, pi. lix. 

 figs. 12 and 13. 

 Germaria elymiformis, ibid. p. 188, pi. lix. figs. 1-9. 

 Pecopteris obtusa, ibid. p. 155, pi. .xxxii. figs. 2a-e and 4a, h. 

 1841. Splienopteris patentissima, Goppert, Gatt. foss. Pflan. p. 73, pi. x. 



fig. 8. 

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

 C, patentissima, ibid. 

 Desmophlebis imhricata, ibid. 

 S. ohtusa, ibid. 

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

 1864. Sphenopteris modesta, Leckenby, Quart. Joom. Geol. Soc. vol. xx. 

 p. 79, pi. X. figs. 3a and 3i. 



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



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

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

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



Ti/pe - specimen. Leekenby's type - specimen of Sphenopteris 

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



Fronds bipinnate, attacbed to an erect stem covered with 

 imbricate pointed scales ; pinnae 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 pinnae 

 and present a characteristic and somewhat stifE appearance ; the 



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



