JoHN.sON & GiLMORE — Dewalqueu in Coal-bore at Washing Bay. 333 



EXPLANATION OF PLATES. 



Plate XI. 

 Figs. 



1, 2, 3. 7). hibernica, sp. n. 



1. More or less complete leaf, showing five leaflets. 



4-11. B. fraxinifolia, sp. ii., showing the three leaflets of the leaf in varying 

 degrees of preservation. 



8, 9. The two impressions of the same leaflet, (x 2). 



12-14. D. denticulata, sp. n. 



13, 14. Natural size. Fig. 12 (x|). 



Plate XTI. 



I, 2. D. hibernica, showing the peltate scales, (x 2). 



3. D. fraxinifolia, venation in detail, (x 7 J.) 



4. B. denticulata, venation, (x 3.) 



5. 6. Upper epidermis of leaf of Bewalquea, sinuous lateral walls. 



7-10. Under epidemis of same, showing stomata and bases of peltate scales. 

 (7-8 (x 80), 9-10 (x 360.)) 



II. VeMa.le scale ot Beivalqnea. (x 300.) 



12. Ve\ta,te sasXe ol Eiigelhardtia spicata. (x 300.) 



