428 



ON" SPECIES OF FOSSrL PLANTS 



I^have endeavored, as far as it was possible, to point out the relation of each of the 

 plants of Mississippi, with species from a known geological stage. Putting the compari- 

 son in a tabular form, we have : 



Nearly related to or identical with 

 Calamopsis Brodana, //. 

 Sabal major, Un. 

 Salisburia. 



Geological Stage. 

 CEningen stage. 

 Aquitan " 

 Pliocene, Europe; Cretaceous? California. 



Lx. 



Species Described. 



1. Calamopsis Danai, Lx. 



2. Sabal Grayana, Lx. 



3. Salisburia bincrvata, Lx. 



4. Populus monodon, Lx. 



5. P. mutabilis, II. 



6. Salix Worthenii, Lx. 



7. S. tabcllaris, Lx. 



8. Quercus Moorii, Lx. 



9. Q. Lyellii, 11. 

 10. Q. retracta, Lx. 



12. Celtis brevifolia, Lx. 



13. Ficus Schimperi, Lx. 



14. F. cintiamomoides, Lx. 



15. Laurus pedatus, Lx. 



16. Cinnamomum Mississippicnsc, 



17. Banksia Helvetica, II. 



18. Persea lancifolia, Lx. 



19. Ceanothus Meigsii, Lx. 



20. Sapindus undulatus, 11. 



21. lihamnus marginatus, Lx. 



22. Juglans apprcssa, Lx. 



23. J. Saftbrdiana, Lx. 



24. Magnolia llilgardiana, Lx. 



25. Magnolia laurif'olia, Lx. 



26. M. Leslcyana, Lx. 



27. M. ovalis, Lx. 



28. M. cordifolia, Lx. 



29. Asiiuina leiocarpa, Lx. 



30. Phyllites truncatus, Lx. 



From this table, on thirty species, without counting the fruit of Pappau, six are analo- 

 gous or identical with living plants ; nine with the Upper Miocene of Central Europe ; two 

 with the Middle Miocene, and eight with the Lower. Moreover, four of our plants are 

 identical with Miocenic species of Europe. I do not think that it would be possible to 

 find between two groups of plants, of far-distant countries, a more intimate relation than 

 what is shown by this enumeration. 



But we have, in the fossil leaves of Mississippi, a number of Magnolias, and the Euro- 



Populus Gaudini, Fls. 



Helvetic stage. 





P. mutabilis, 11. 



(Hningcn 



tt 





Salix tenera, Br. 



« 



u 





S. longa, Br. 



.( 



u 





Q. densiflora, En. 



Living. 







Q. Lyellii, //. 



Aquitan, (Bovey T 



■acey.) 



Q. Eloona, Ung. 



» 



stage. 





Celtis Mississippiensis, Bos. 



Living. 







Ficus truncata, //. 



(Fningcn 



a 





F. tiliaefolia, Br. 



Maintz 



u 





Laurus princeps, II. 



O^ningen 



u 





Cinn. Buchi, II. 



Aquitan 



a 





Banksia Helvetica, II. 



(Fmingen 



cc 





Persea speeiosa, II. 



tt 



u 





Ceanothus tiliaofolius, Ung. 



Aijuitan 



tt 





Sapindus undulatus, 11. 



(Hningen 



tt 





lihamnus Carolinianus, Mx. 



Living. 







Juglans Heerii, Elt. 



Aquitan 



a 





tt 



u 



tt 





? 



? 







Terminalia ltadobojensis, Ung. 



Aquitan 



a 





Magnolia umbrella, Mx. 



Living. 



? 

 Living. 







M. cordata, Mx. 







A. triloba, Dim. 



(i 







Viburnum tinus, L. 



(I 







