Berry — Engelhardtia from the American Eocene. 493 



Saporta* from the Miocene of Florissant, Colorado. I have been 

 unable to get track of this specimen and as no specimens of 

 Engelhardtia have been detected in Professor Cockerell's 

 recent and extensive collections from this locality and as 

 Carpinus is not at all uncommon, it seems probable that Les- 

 quereux's determination was based upon material of the lat- 

 ter genus, particularly as the Florissant plant beds are consider- 

 ably younger than the type locality for Engelhardtia oxyptera, 



Fig. 1. 



Fig. 1. Sketch map showing the existing geographical distribution of 

 Engelhardtia (vertical lining) and fossil occurrences (stars). 



which was Armissan, France. In any event the Florissant 

 material differs markedly from the present species from Missis- 

 sippi, having a different venation and being only half the size 

 of the latter. 



With these introductory remarks we may proceed to the de- 

 scription of an unmistakable species of Engelhardtia recently 

 recognized from the Eocene deposits of northern Mississippi. 

 The single specimen of the fruit shown in the accompanying 

 text figure was collected in 1889 by W. J. McGee while 

 engaged in his studies of the so-called Lafayette formation and 

 has lain unstudied in the collections of the U. S. National 

 Museum since that date. 



* Saporta, Etudes sur la Veget. du sud-est de la France a l'epoque Ter- 

 tiaire, xi, p. 344, pi. xii, fig. 2, 1866. 



