MIOCENE FLORA— CALIFORNIA AND OREGON. 247 



Castanea atavia, Ung. 

 Plate LII, Fig. 2. 

 Ung., " Fl. v. Sotzka," p. 34, pi. x, figs. 5-7. 



Leaves oblong, acute or somewhat obtuse, narrowed at base, unequal, petiolate, 

 coarsely acutely dentate; primary nerves strict; lateral nerves simple, craspedodrome. 



The leaves of this species are smaller than those of the former, the 

 teeth larger, more acute, the lateral veins more numerous. They are very 

 similar to those of the living North American C. pumila. I have only seen 

 the specimen figured. 



Hah. — John Day Valley, Oregon. 



SALICINE^E. 



SALIX, Tourn. 



Salix varians, Groepp. 



Plate LV, Fig. 2. 



Goepp., " Fl. v. Schoss.," p. 26, pi. xix, figs. 17, 18 ; xx, figs. 1,2; Heer, " Fl. Tert. Helv.," ii, p. 26, pi. lxv, 

 figs. 1-3,7-16; iii, p. 174, pi. cl, figs 1-6; Ludw., "Palaeont.," viii, p. 92, pi. xxvii, figs 6-12; 

 Heer, " Fl. Foss. Alask.," p.27, pi. ii, fig. 8; iii, figs. 1-3; Ett., "Fl. v. Bil.," p. 86, pi. xxix.figs. 

 17,19,22,23. 



Leaves petiolate, Jong-lanceolate or lanceolate-acuminate, narrowed or rounded to 

 the base, serrulate ; lateral nerves at an acute angle of divergence, curving in ascend- 

 ing to the borders, camptodrome. 



This leaf, though less narrowed to the base than are generally those 

 of this species, has the same form as that of fig. 18 of Goeppert and also 

 of Heer, fig. 13, loc. cit., which represents the variety Wimmeriana. The 

 leaf, Hi centimeters long, is more than 2 i centimeters broad a little above 

 the base, and hence gradually equally tapering to the acumen ; the nerves 

 and nervilles are very distinct. 



Hab. — Table Mountain, California, in a block of carbonate of iron; 

 Corral Hollow, Oregon, in numerous fragmentary specimens. 



Salix angusta, Al. Br. 



Plate LV, Fig. 6. 



"U.S.Geol.Rep.," vii, p. 168, pi. xxii, figs 4, f>. 



Leaves entire, long and narrow, linear-lanceolate, acuminate, narrowed at base 

 to a short petiole ; secondary veins close, numerous. 



The specimen shows a number of fragments of leaves of willows, 



