5 



. CUPULIFERiE. 461 



I to 1 £ inch wide, clothed with grayish pubescence on both sides ; but 

 when old nearly smooth above, and the under surface somewhat rusty 

 in dry specimens. In some individuals the leaves are narrowly oblong, 

 very obtuse, and either perfectly entire or slightly repand-toothed 

 towards the extremity. The broader leaved forms are cut on each 

 side into 2 to 4 short lobes or coarse teeth, which are slightly pointed, 

 but not mucronate. Between these two forms there are others that 

 are intermediate, so that they all clearly belong to one species. The 

 acorns vary considerably in size ; the cup, from one-third to three- 

 fourths of an inch in diameter, embraces from one-fifth to one-fourth 

 of the gland. It is thin, closely sessile, the scales very small, and 

 not projecting beyond the margin ; they are sometimes thickened and 

 convex, giving the cup a somewhat tuberculate appearance. The 

 gland 8 to 10 lines long, and either ovate-oblong or very narrow in 

 proportion to its length. Like several other Californian and Oregon 

 Oaks, the extreme forms of this one differ so much that they might 

 easily be mistaken for distinct species. If we are correct in referring 

 them all to Q. oblongifolia, the species has an extensive range, but we 

 have never seen specimens from southern and western stations that 

 exhibited a tendency to form lobed leaves. 



5. Quercus lobata, Me. (Tab. XV.) 



Quercus lobata, Nee in Anal, de Cien. Nat. 3, p. 270 (fide Liebm. 1. c. p. 172) ; 



Torr. Bot. Mex. Bound. Rep. p. 205. 

 Q. Hindsii, Benth. Bot. Sulph. p. 55 ; Torr. Bot. Whippl. Rep. p. 138 ; Newberry 



in Pacif. R. Road. Rep. Bot. p. 27, f. 5 (xylog.), & tab. 1. 



Hab. Sides of hills in the Valley of the Sacramento, and on the 

 Coast Range of Mountains, as far south as Monterey. This is the 

 noblest oak of California, and there takes the place of Q. alba of the 

 Eastern States. Dr. Newberry often saw trees of it 6, 7, or more feet 

 in diameter. Near Marysville he measured the trunk of one that 

 was six feet in diameter three feet from the ground, and estimated its 

 height at seventy-five feet ; the branches spreading horizontally more 

 than sixty feet. The timber, however, is far less valuable than that 

 of the White Oak, being brittle and porous. On high mountains the 

 tree is much reduced in size, and the acorns also. The latter are 



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