CALAMITES DECORATUS, BRONG. 



Brong. Class. V(^get. foss. p. 17, j)L 1, Jiff. 2. 

 Brong. Hist, veget. foss. I, p. 123, ^>/. 14, Jigs. 1—5. 

 linger. Gen. et Spec. p. 44. 

 Sternh. Vers. I, p. 27; II, p. 49. 

 Schloth. Petref. p. 401. 

 Artis, A7ited. Phytol. pi. 24. 



The inverted figure i of I^rongniart seems a very accu- 

 rate fac - simile of our fragmentary and decorticated 

 specimen, which is most distinctly defined. The striae 

 are crooked, and the tubercles at their extreme superior 

 terminations , are remarkably tumid and nearly hemis- 

 pherical. 



Distribution , in coal formation : — at Lowmoor and 

 Lea Brook — in England ; at Mannebach and Saarbriick 

 — in Germany; in Pennsylvania. 



ASTEROPHYLLITAE. 



ASTEROPHYLLITES RIGIDA , BRONG. 



Brong. Prodr. 21s. 154, 159, 176. 



linger. Gen. et Spec. p. 64. 



Bronn and Boenier , Leth. Geug. vol. 1, p. 104, pi. 8, fg. 7. 



SCHLOTHEMIA DLBIA, 

 Sternb. Vers. II, p. 32; Lindl. and Hutt. Foss. flo. vol. 2, p. 

 150, pi. 211. 



BRUCK^IANNIA RlGlDA, 

 Sternb. Vers. I, p. 29, pi. 19, Jig. 1. 



Stem articulate, — strongly, longitudinally striate; 

 leaflets spike -shaped, acuminate, striate, rigid, di- 

 rected upAvard and about three times the length of the 

 internodes. 



• As above, fig. 1. 



