MIOCENE FLORA— BAD LANDS. 231 



Viburnum dako tense, sp. nov. 



Plate XLVIa, Fig. 9. 



Leaf subcoriaceous, ovate-acute or apiculate, deeply dentate from near the rounded 

 base; lateral nerves deep, branching outside, craspedodrotne. 



There is only one leaf of the kind. It is a little lacerated at base, 

 but evidently rounded; the border teeth are large, turned upward, blunt 

 at the apex. The relationship of this leaf is evidently with the following- 

 species and still more with Viburnum Schmidtianum, Heer, of the "Sachalin 

 Flora," p. 43, pi. xi, figs. 4, 8. This last species has the leaves a little 

 larger, the lateral nerves closer, more oblique, and the border teeth shorter 

 and more acute. In both species the subdivisions of the secondary nerves 

 are dichotomous rather than lateral. 



Hab. — Bad Lands of Dakota. Professor Wm. Denton. 



Viburnum Dentoni, sp. nov. 

 Plate XLIX, Figs. 2, 3. 



Leaves of medium size, subcoriaceous, polished, oval, gradually narrowed from 

 the middle to the petiole and in the same degree to a sharp point or acumen, sharply 

 dentate on the borders ; nervation strongly marked ; lateral nerves close, parallel, 

 nearly straight in passing to the borders, branching outside, craspedodrome. 



From a number of fragmentary leaves of the same kind I have figured 

 the two which more distinctly represent the characters. The leaves, about 

 9 centimeters long and 5 broad in the middle, are oval or ovate, acuminate; 

 the border teeth are long, sharply pointed or spinulose-acuminate, the ter- 

 minal subfalcate; the nervation is very distinct, as also are the nervilles, 

 which are close and mostly simple. The lateral nerves are more numer- 

 ous and closer than in the preceding species and the substance of the 

 leaves is thicker. The specimens come from a different locality ; the stone 

 is hard and black. 



