28 



BOTANY. 



Sierra Nevada of central and southern California it is said to attain a greater size, but never 

 to become a large tree. 



The leaves were thick and shining above, glaucous below, having some resemblance to those 

 of the golden-leafed chestnut. The acorns were small, flat, and nearly concealed in the 

 snioothish, wheel-shaped cup. At that time I supposed that it was decidedly an over-cup oak. 

 On rny return to San Francisco, in the autumn, I learned, for the first time, from my friend 

 Dr. Kellogg, the changes which take place in the development of the acorn. This finally 

 emerges from the cup to a degree equal to that of any other of the Californian oaks. The cup 

 retains, to a considerable extent, its original form, but is much thickened. The name Crassipocula, 

 given to this species by Dr. Torrey, is very appropriate, but was anticipated by that of Dr. Kellogg. 



Of the wood of Q. fulvescens I obtained no information, except that the small branches are 

 tougher, and the wood apparently denser, than in most of the oaks of the west ; of which, the 

 wood, as a general rule, is brittle. 



QUERCUS KELLOGGII, Newb. Kellogg s oak. 



Q. TINCTORIA, var. CALIFORNICA. Torr. Bot. Whipp. Hep. 



&amp;gt;. 138. 



Fig. 6. Branch, leaves, and acorn of Q. Kdloyyii, \ natural size. 



