cupuLiFER^. SILVA OF NORTH AMEPtlCA. 



61 



QUERCUS SADLERIANA. 



Leaves oval to oboyate, coarsely denticulate, thick and coriaceous, pale and usuall} 

 puberulous on the lower surface, persistent during the winter. 



Mag. Nat. Hist. ser. 2, vii. 249 (1871). — Watson 



xxii. 477. — Greene, Wi 



A shrub, with slender ashy gray stems from three to six feet tall, forming large thickets. The 

 branchlets are stout and marked with oblong scattered pale lenticels ; when they first appear they are 

 green tinged with red and glabrous or pilose with occasional caducous pale hairs, and during their first 

 winter they are light orange-colored or light reddish brown, becoming ashy gray m their second or 

 third year. The buds are ovate, obtuse, bright red-brown, covered with loose pale hairs, and from one 

 quarter to one third of an inch in length, the scales of the inner ranks being coated with thick white 

 tomentum. The leaves are convolute in the bud, oval or slightly obovate, wedge-shaped or rounded 

 equally or unequally at the narrow base, acute or rounded at the apex, and coarsely dentate with 

 incurved gland-tipped teeth ; when they unfold they are thin, bronze-green and puberulous on the 

 upper surface, and pale or silvery white and coated with soft short pubescence on the lower, and at 

 maturity are thick and firm or subcoriaceous, dark yellow-green and lustrous above, and paler, sometimes 

 silvery white, and glabrous or puberulous below ; they are from two to four inches in length and from 

 one to two inches in breadth, with slender midribs rounded on the upper side, and simple or rarely 

 forked oblique veins running to the points of the teeth and connected by obscure reticulate cross 

 veinlets ; they are borne on stout glabrous grooved petioles varying from half an inch to nearly an inch 

 in length, and, turning yellow in the autumn, remain on the branches until after the appearance of the 

 leaves of the following year. The stipules are obovate, pointed, narrowed into long slender stalks, 

 coated with long loose white tomentum and often nearly an inch long, those of the last leaves being^ 

 usually persistent on the branches during the winter. The staminate flowers are subtended by linear 

 hairy bracts, and are produced in slender glabrous aments three or four inches in length from the 

 inner scales of the terminal bud and from the axils of the first four or five leaves ; the calyx is light 

 yellow, pubescent, and divided into ovate acute lobes much shorter than the stamens, from five to nine 

 in number, which are composed of slender filaments and oblong pointed glabrous yellow anthers. The 

 pistillate flowers are borne in few-flowered spikes on stout peduncles in the axils of the upper leaves^ 

 and, like the involucral bracts, are covered with dense pale tomentum; the stigmas are bright red. 

 The acorn is sessile or short-stalked, and usuaUy solitary ; the nut is oval, rounded or acute at the 

 apex, about three quarters of an inch long, light chestnut-brown, and slightly puberulous ; the cup^ 

 which incloses about a third of the nut, is cup-shaped, thin, light brown, and coated with soft white 

 hairs on the inner surface, and reddish brown and tomentose on the outer surface, which is covered 



* 



by small ovate acute scales with minute free tips, and thick and rounded on the back toward the base 

 of the cup. 



Quercus Sadler iana is confined to the high slopes of the mountain ranges of the coast region of 

 southwestern Oregon and northwestern Cahfornia, forming vast thickets on the Siskiyou Mountains 

 between four and nine thousand feet above the level of the sea. 



un 



Discovered in southern Oregon in 1852 or 1853 by John Jeffrey, the Scotch collector, whose spe 

 1 of a sterile branch is preserved in the herbarium of the Royal Botanic Garden at Edinburgh, ii 



