BOTANY. 



27 



squirrels. The shell of the nut is much harder than that of the eastern chinquapin, and the 

 two species are in all respects unlike. 



It is quite common to find ripe fruit and freshly-hlown flowers on the same plant at the same 

 time ; indeed, I think that was the general rule when the specimen figured was collected, on 

 the head-waters of the Des Chutes river, in Oregon, August 30. Hooker's hrief description 

 (1. c.) is applicable to the plant wherever I saw it, except that he represents the aments as 

 confined to the axils of the leaves, and to be not more than an inch in length ; whereas I often 

 found the aments not only in the axils of the upper leaves of a branch, but exclusively occupy- 

 ing the extremity. The aments in my specimen are twice as long as in his. 



Quercus fulvescens, Kellogg. The Fulvous Oak. 



Q. fulvescens, K. Pro. Cal. Acad. Sc. I, p. 67 and 71. 



Q. crassipocula, Torr. Bot. Whipple's Rep. p. 137. 



Q. crassipocula, Bot. Williamson' s Report, p. 365, t. IX. 



Fig. 5. 



Fig. 5. Branch of Q. fulvescens, with young fruit, half natural size. 

 Fig. 5a. Toothed leaf of Q. fulvescens. 1 

 Fig. 56. Mature fruit, half natural size. 



Description. — Tree of medium size, spreading ; leaves oblong-ovate, acute, toothed, or entire; 

 when toothed, teeth remote, acute, callous at point, confined to upper half of leaf; veins 

 beneath villous; petioles fulvous; gland sessile; when young, flat, wheel-shaped, nearly con- 

 cealed in the cup; when mature, long-ovoid, 1J in. long, 1 in. broad; cup saucer- shaped, 

 thick, velvety, fuscous, enclosing 1 1-5 of the gland. 



Tliis pretty oak occurred on the line of our route only on the banks of Canoe creek, in the 

 western range of the Sierra Nevada, northeast from Lassen's butte. It there formed rather a 

 large shrub than a tree. It is, however, here near the northern line of its range ; and on the 



