MIOCENE FLORA— CALIFORNIA AND OREGON. 245 



here the leaves of Quercus furcinervis of Rossmassler; and as some of the 

 leaves, like those of pi. liii, fig. 2, and pi. liv, fig. 1, are ovate-lanceolate, I 

 believe that both descriptions refer to leaves of the same variable species. 

 Very few of the figures of this species given by European authors are made 

 from good specimens. The best is that of Heer, " Fl. Arct.," pi, xlv, fig. 1 d, 

 which is like my fig. 11. For this reason I have represented the species 

 by a number of figures which show its different characters. Fig. 14 is a 

 fragment with distinct areolation ; fig. 13 is the smallest of the leaves I 

 have seen ; fig. 8 is the cup of an acorn found with leaves of this species, 

 and possibly referable to it. The fragment, fig. 9, nearly 8 centimeters 

 broad, indicates a leaf about twice as large as that of fig. 12. 



Hab. — Bridge Creek and Cascade Mountains, Oregon, under a volcanic 

 overflow. Professor Jos. L. Le Conte ; Plumas Co., California. Professor 

 /. I). Whitney. 



Quercus Olafsciii, Heer. 

 Plate LIV, Fig. i. 



Supra, p. 224. 



Leaves subcoriaceous, large, oblauceolate or elliptical, doubly dentate ; teeth 

 obtuse ; secondary nerves subparallel, some of them forking at the apex. 



I have only seen the figured fragment of this species. It agrees in 

 characters with Heer's description, being especially similar to fig. 10 of 

 pi. Ixvi, loc. cit. The lower lateral nerves are more open and slightly 

 more curved, camptodrome, the upper entering the primary teeth or 

 craspedodrome. 



Hah. — Table Mountain, California. 



Quercus drymeja, Ung. 



Plate LIV, Fig. 4. 



Supra, p. 154. 



Leaves coriaceous, long-lanceolate, narrowed both to the apex and to the slender 

 petiole, acutely dentate ; secondary nerves parallel, slightly curved in traversing the 

 blade, simple, craspedodrome. 



This leaf agrees in characters with those figured by the authors. The 



species common in Europe appears to be rare in the American Tertiai-y. 



Hab. — Bridge Creek, Oregon. 



