MIOCENE FLOKA-BAD LANDS. 237 



POMACES. 



PRUNUS, Linn. 



Pruniis clakotensis, sp. nov. 



PkiteXLVlA, Fig. 8. 



Leaf small, broadly ovate, lanceolate-acuminate, 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 

 typica), differing by the more acuminate apex, the more minute teeth of 

 the borders and close strong nervilles. 



Hah. — Bad Lands. Professor Wm. Denton. 



LEGUMINOS^E. 



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. jjarvifolia. 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. 



Hab. — Bad Lands. Professor 2T. H. Winchell. 



