1)G 



crriMFKiLK. 



4. Q. Breweri, Kn^ohn. A slnub 2 to G feet hiyli, vitli slij^litly pubescent 

 branelilets, al la.sl -labiate : leaves siuall (U, to 2 or rarely 3 iiiehes long), deeply pin- 

 uatilid; lobes obtuse (rarely aeutisli) and eniarginate, sonietimcis again lobed, on 

 petioles 2 or rarely 3 lines long: acorns sessile or on peduncles G to 1) lines long; 

 cups ratber sballow, mostly strongly tuberculate ; nuts oval, ol)tuse, an incb or more 

 in lengtb. — Q. lobatu, subsp. fruticosa, Engelni. 1. c. 389. 



On the midaic or liightT elevations of tin- SitMia Ncva<l;i, from Calaveras Comity to tlie Oregon 

 line, fonning " oak-elKiiipaiai." The foliage greatly resembles tliat of Q. lohabi, tlie aeoms 

 lather those of Q. (/urri/dua, and the oval brown slightly imbes.ent wuiter-liuds, only 1 to 1 i 

 lines long, are similar to those of Q. Doiujlasii. 



++ ++ Leaves persistent thr.nKjh icintev and most!// until the ajijieanince of new 



leaves. 



f). Q. undulata,Torr., var. pungens, Kngelm. 1. c. 392. A .sbnib 2 to 8 feet liigb, 

 mucb branched and of scraggy bal)it : leaves small (an inch long), broadly oval, 

 sjiinosely lobe-ilentate, rarely nearly entire, coriaceous, pale green, on very short 

 petioles, pubescent or hoary beneath, mostly glabrate above : aments short (f to 1 

 inch long), woolly : calyx with 5 oval lobes and 5 to 8 (usually G) small orbicular 

 anthers :''acorns sessile or peduucled; cups mostly hemispherical, only 3 or 4 lines 

 in diameter; nut slender, elongated, G to 10 lines long. — Q. ]Miu(/eHs, Liebm. 1. c. 

 171, in part. 



In the California Desert (Dr. P<(rr>j), the western limit of this variety, which is very eommon 

 in Arizona ami eastward. I take this to lie an extreme form of Q. uiulitlahi of the liorky Moun- 

 tains, the large-leaved variety of whieh (var. Gambdn), with dark gieen obtusely lobed deciduous 

 leaves, has not yet l)eeu found so far to the .southwest. The aeoins are sweet and edil)le. 



G. Q. dumosa, Nutt. A tall shrub or small tree, 4 to 10 or 20 feet high, mostly 

 with slender straight branches, woolly when young : leaves coriaceous, mostly small 

 (a half-inch to an inch long, or rarely larger), on petioles a line or two long, oblong, 

 obtuse, rounded or rarely acute at base, entire or usually sinuate or siiuiate-toothcd, 

 on young shoots spinosetoothed, dark green above, pubescent beneath, the margins 

 rather revolute : aments about an inch long: calyx with 5 to 8 ovate-laiiceohite 

 pubescent lobes and as many stamens : acorns sessile, exceedingly variable in size ; 

 cups ileeply hemispherical, 4 to 10 lines wide, dark-colored and usually strongly 

 tuberclod, rarely with rather flat scales ; nuts oval, an inch long or nmre, sometimes 

 slender and sn^aller. — Sylva, i. 7; Kngelm. 1. c. 393. Q. berbefl,lijotia, Liel)m. 

 1. c. 172, ill part. Q. acutalens, Torr. I'.ot. :Mex. liouiid. 207, t. b\, a large-leaved 

 form. 



Var. bullata. Leaves rounder, thicker, paler, convex above, hoary on both sides 



or only below. 



Common in the eanons and on the arid slopes of the Coast Itangesfrom San Diego to San Fian- 

 cisco Bay; the variety in the Santa laaia Mountains (L'rcc.r/) and iiorthwar.l to i.ake County, 

 Dr. Torrcij. Closely'aUicd to the last and freciuenlly eonfounded with it, but oeeiiiiying a dil- 

 ferent .'eo-Manhieal area and bearing very dilferent fruit. Th.' leaves also are mueli less spiny, 

 except on young .shoots, and more sinuate or sinuate-toothed. The variety has a peculiar a.spect, 

 but can hardly l)e separated specifically. It appears to extend iaither north than the principal 

 form. 



7. Q. oblongifolia, Torr. A middl(!-si/ed tree, 20 to 30 feet high, with jialc 

 smoothish bark, as in Q. alha : leaves oldong, 1 or 2 inches long and half as wide, 

 on very short petioles (a line or two huig), entire or with a few blunt teeth, obtuse 

 at eacii end or subcordate at base, at lirst soft-downy, the older ones entirely gla- 

 brous, coriaceous and almost without reticulation : caly.x-lobijs short, oval, woolly : 

 acorns sessile or iieduncled ; cups liemispherical, tubercled ; nuts oblong, I to 1 inch 

 long. — Sitgreaves' Kep. 173, t. 19; Kngelm. 1. c. 393. 



In the mountains of Southwestein California, from S.m Di.'go to I.os Angeles, ami ea.st\vard 

 into Chihuahua and New Mexico; known as the Kveigieen White (Jak or l.ivc Oak. The 



