QUERCUS DENSIFLORA. 43 



Messrs. Victor Chesnwt and Elmer Drew, students at the University of California, 

 wlio have botanized carefully in the woods of Humboldt County, assure me that the wood- 

 men of those regions insist upon two different kinds of the Tan Bark Oak, which they 

 readily distinguish. But I am not aware of the existence of any constant characters from 

 which two species, or good varieties even, may be made out. 



