Aj)pendijc. 151 



t 



Bonax rusticus. (S. G. M.) "Fig. 15. Ovato-trlangular^ convex, 



with obsolete concentric undulations : posterior side produced^ cu- 

 neate. - , - 



Fig. 16. Venus. Lin. 



PLATE IV. 



Fig. 5. See Sternberg, Tab. 5. 



Fig. 6. Uncertain. 



Fig, 8. Pecoptorls ; near P. Serlli. (Brong. pi. 85.) 



Fig. 9- Uncertain. 



PLATE V. 



Fig. 7. Compare with Stigmaria Jicoidcs. (Lindley, Tab. 31.) 

 one of the commonest fossils of the coal formation. 

 Fig. 11 and 15. Uncertain. 



PLATE VI. 



Fig. 12. Phytolithus cancellatus. (Steinhaur, Am. Phil. Trans.) 

 Fig, 13 and 14. Uncertain. 



PLATE Vll. 



Fig. 16. Uncertain. 

 Fig. 17. Calamites. 

 Fisr. 18, 19, 20. and 21. Uncertain. 



PLATE VIII. 



Fig. 34. Uncertain. 



Fig. 36. Calamites; near G. cannaeformis. (Brong. pi. 21.) 

 Fig. 37. Calamites. 



Fig. 38 and 39. Calamites; near C. ramosus. (Brong. pL 17.) 



PLATE IX. 



Fig. 30. Asterophyllites ? (Sternberg, Tab. 51, Fig. 2.) 

 Fig. 32. Calamites ? also approaches Sigillaria. 

 Fig, 33. Uncertain. 



PLATE X. 



Fig. 22. Uncertain. 



Fig. 23. Pecopteris; near P. cyathea. (Brong. pi. 101.) 



Fig. 24. Pecopteris — on the upper part of the figure. 



PLATE XI. 



Fig. 25. Pecopteris? 



Fig. 26. Left hand figure, near Taeniopteris ; but the frond is 



r 



^ore elongated, and less dilated towards the base. 



PLATE XII. 



Fig- 27. Mutilated Pecopteris ? 

 Fig. 28 and 29. PecoDteris. 



