704 GEOLOGY OF THE YELLOWSTONE NATIONAL PARK. 



Creek, bluff 300 feet above stream; collected by F. H. Knowlton, August 

 27, 1888. Junction Butte Fossil Forest, altitude about 7,450 feet; collected 

 by Lester F. Ward and F. H. Knowlton, August 25, 1887. 



QUERCUS GROSSIDENTATA U. Sp. 

 PL LXXXYII, fig. 7. 



Leaf large, coriaceous, broadly lanceolate (base destroyed), apex 

 acuminate; margin strongly toothed, the teeth sharp, upward pointing; 

 midrib perfectly straight; secondaries about 8 or 9 pairs, alternate, at 

 an angle of 45°, craspedodrome, slightly arching upward, ending in the 

 large teeth; nervilles strong, at right angles approximately to the midrib, 

 mainly percurrent, but occasionally forked or broken, finer nervation not 

 retained. 



Unfortunately this fine species is represented by the single specimen 

 figured, and this, it may be seen, lacks the basal portion. The part retained 

 is 10 cm. long and 4.5 cm. wide. It was probably 14 or 15 cm. in length 

 when perfect. It lias the margin strongly toothed, the teeth with long, 

 rounded or sharp points, each of which is entered by a secondary. 



Habitat: Fossil Forest Ridge, bed No. 5; collected by Ward and 

 Knowlton, August 19, 1887. 



Quercus consimilis? Newby. 



PI. LXXXVII, fig. G. 



Quercus consimilis Newby.: Proc. U. S. Nat. Mus., Vol. V, p. 505, 1SS2 [1883]. 

 Quercus breireri Lx. : Cret. and Tert. EL, p. 24G, PI. LIV, figs. 5-8. 



This is only a fragment of the base of a leaf. It does not ag*ree 

 absolutely with the figures of Lesquereux, but rather than make it a new 

 species I have referred it provisionally as above. 



Habitat: Yellowstone River, one-half mile below mouth of Elk Creek, 

 at top of bluff; collected by F. H. Knowlton, August, 1888. 



Quercus? maonifolia n. sp. 

 PI. LXXXYIII, fig. 1. 



Leaf large, of firm texture, long, broadly obovate, narrowed to the base, 

 rounded-obtuse at apex; margin at base entire, remainder of margin 



