NATURAL SCIENCES OF PHILADELPHIA. 437 



C. ramosus, Art. 

 1 spec. 0. " nodosus," Sternb. Glamorganshire. T. B. Wilson, M. D. 

 1 spec. " Phyt. sulcatus." Near Bradford. J. P. Wetherill. 

 1 spec. " C. ramosus," Art. Br. Ins. Coll., No. 69. 

 ?1 spec. "0. with scars of branches." Bris. Ins. Coll. 



C Cist ii , Brongt. 

 1 spec. " C. with impression of Sigillaria on the back," Radstock. Br. Ins. 



Coll., No. 82. 

 1 spec. J. P. Wetherill. 

 1 spec. " C. Cistii ?" Red Vein, Iron Stone, Abersychan. T. B. Wilson, M. D. 



C. d ub iu s , Art. 



1 spec. " Phyt. sulcatus," Sheffield. J. P. Wetherill. 



C. cannaeformis, Brongt. 

 1 spec. " Phyt. sulcatus," Near Bradford. J. P. Wetherill. 

 1 spec. " Phyt. sulcatus," Pudsy. J. P. Wetherill. 



1 spec. "C. cannoeformis." Brist. Ins. Coll., No. 63. 



C. approximatus, Br. 



2 spec. " C. approximatus." In Pennant, Br. Ins. Coll., Nos. 58 and 59. 

 1 spec. " C. approximatus." Merthyr. T. B. Wilson, M. D. 



1 spec. " C. ranceolatus "! ! ! 



1 spec. England. Mr. R. E. Griffith. 



1 spec. 



C. Steinhaueri, Br. 

 1 spec. Shelf Pork. T. P. Wetherill. 

 1 spec. " C. Steinhaueri," Bris. Ins. Coll., No. 78. 



C. i n as q u a 1 i s , L. et H. 



. 1 spec. "C. (irregular.)" Pennant, Bris. Ins. Coll., No. 66. 



We have identified this species with some hesitation, as its only distinguish- 

 ing characteristic, (according to its discoverer,) is its irregularity. Our speci- 

 men perfectly possesses that peculiarity ! 



Besides the%bove, there are quite a number of foreign specimens of this 

 genus in the cabinet, but, unfortunately, their specific characteristics are not 

 sufficiently preserved for their identification. 



Ord. ASTEROPHYLLITLE. 



ASTEROPHYLLITES. 



A. equisetiformis, Brong. 



1 spec. A. equisetiformis. England. Br. Ins. Coll., No. 23. 



Sphenophylutes, Brong. (1822). 

 Sphenophyllum, Brong. (1828). Rotularia, Sternb. (1822.) 



What influenced lions. Brongniart in altering his first chosen name, we are 

 unable to divine, unless he did it for the sake of euphony. And why not 

 change Asterophj'llites to Asterophyllum, on the same principle? Of course 

 the first name must stand to the exclusion of the more euphonious. 



S. erosa, nobis. 

 Sp/ienopkyUum, erosum, L. et H. Foss. Flor. vol. i. tab. 13. 

 I spec. "Sphenophyllum erosum." England. Br. Ins. Coll. No. 15. 



S. a n g u s t i f o 1 i a, Germ ? 

 Sphsnophi/Uum, arigustifollum, Unger. Gen. N. spec. Foss. Plant, p. 71. 

 I spec. England. Dr. T. B. Wilson. 



I860.] 



