U P U h I F E B M. 



459 



fertile flowers, and in the somewhat prickly cup, as well as in the 

 leaves (when serrate), this oak resembles a Castanea, and especially 

 G. chrysophylla of California. Dr. Newberry states that the acorn is 

 somewhat triangular, but it does not show that character in mature 

 dry specimens. 



2. Quercus chrysolepis, Liebm. 



Quercus chrysolepis, Liebm. Querc. Neo. Mex. & Calif.* p. 173 ; Benth. PL Hartw. 

 • p. 336 ; Torr. Bot. Mex. Bound. Rep. p. 207. 

 Q. crassipocula, Torr. in Pacif. R. Road Rep. 5, p. 365, t. 9, & Bot. Whippl. 



Rep. p. 137. 

 Q. fulveseens, Kellogg in Proceed. Calif. Acad. Nat. Sc. 1, pp. 67 & 71 ; New- 

 berry, 1. c. p. 27, fig. 5. 



Hab. Southern Oregon and mountains of Northern California. — 

 This oak is extremely variable in the size and form of the leaves and 

 acorns. On high mountains it is a mere shrub, 8 to 10 feet high, but 

 on the foot-hills of the Sierra it rises to the height of 40 feet, with a 

 trunk 12 inches or more in diameter. The leaves are evergreen, 

 usually about 2 inches long, ovate, abruptly pointed, shining above, 

 and yellowish downy underneath. They are usually entire, but often 

 acutely toothed, even on the same branch. We have specimens col- 

 lected by Col. Fremont on the Sierra Nevada, at the height of 9400 

 feet, of a shrubby state of this species, in which the leaves are 

 scarcely three-fourths of an inch long, rather obtuse, and either en- 

 tire or the upper part sharply dentate-serrate. The acorns are still 

 more variable: the gland sometimes narrowly oblong, tapering to a 

 point, and scarcely one-third of an inch in transverse diameter. 

 More commonly it is li inch long, and I of an inch in diameter, 

 ovate, obtuse, with a short abrupt point ; but occasionally they are 

 of great size, as represented in the figure above quoted. The cup 

 is thick, shallow, and velvety, the protuberant broadly ovate scales 

 giving it a somewhat tuberculate appearance. 



* In " Oversigt det Kgl. Danska Videnskabernes Selskabs Forhaudlinger og dets 

 Medlemmers Arbeider, i Aaret 1854, Kbjbenhavn." 



