MIOCENE FLORA -BAD LANDS. 237 



POMACES. 



PEUNUS, Linn. 



Pruiius (lakotensis, sp. nov. 



Plate XLVIa, Fig. 8. 



Leaf small, broadly ovate, lanceolate-acumiuate, rounded at base, minutely ser- 

 rate on the borders ; nervation camptodrome. 



The leaf, nearly 4 centimeters long, more than 2i broad in the middle, 

 has the lateral nerves (8-10 pairs) parallel but at unequal distances, the 

 basilar thin, the others more distinct, all very much curved in traversing 

 the blade, camptodrome, united to the minute teeth by anastomosing 

 veinlets; the nervilles are oblique, flexuous, more generally branching 

 in the middle. 



The leaf is remarkably similar to that of pi. xl, fig. 11 {Amelanchier 

 f^jji'm), differing by the more acuminate apex, the more minute teeth of 

 the borders and close strong nervilles. 



Hab. — Bad Lands. Professor Wm. Denton. 



LEGUMINOS^. 



CERCIS, Linn. 



Cercis truncata, sp. nov. 



Leaf of medium size, somewhat thick, round in outline, obtusely pointed, trun- 

 cate at base, palmately five-nerved. 



This leaf has exactly the same^ form and nervation as the leaves 

 figured on pi. xxxi, figs. 5-7, and described as C. parvifoUa. But it greatly 

 differs by its size being 8 centimeters broad and more distinctly pointed. 

 As the leaves of Cercis are extremely variable in size, this one may repre- 

 sent a large and more developed form of the species of Florissant. 



Hah. — Bad Lands. Professor N. H. Winchell. 



