8 THE PALEONTOLOGY OF MINNESOTA. 



[Number of Mi sola Cretaceous plants. 



The small lot of specimens of Cretaceous fossil plants obtained in Minne- 

 sota by the state geologist Prof. N. H. Winchell, and described here below may serve 

 as a confirmation of the above remarks. 



The number of specimens, 55, represent no less than 28 species. Of these two 

 only are of .gymnospermous plants ; all the other, dicotyledonous, are referable to 

 eighteen genera pertaining to the three great subdivisions of the dicotyledons, the 

 Apetalece, the Gamopetalece, and the Dialapetalece. 



APETALE^E. GAMOPETALE.E;. DIALAPETALE^E. 



Populus. Diospyros. Aralia. 



Salix. Andromeda. Cissus. 



Alnites. Credneria. 



Platanus. Magnolia. 



Ficus. Dewalqwa. 



Laurus. Juglans. 



Cinnamomum. Sapindus. 



Cratcegus. 



Protophyllum. 



The relation of the genus Protophyllum, represented by two species, though 

 still uncertain, is most probably to Credneria, and therefore shall be admitted in the 

 Dialapetalece. 



