OAK FAMILY 361 



13. Q. wislizenii DC. Interior Live Oak. Round-headed tree most com- 

 monly 30 to 75 feet high; trunk 1 to 3 feet in diameter with a thick brittle 

 bark which is very smooth or sometimes roughly fissured ; leaves typically 

 oblong (varying to elliptic, ovate or ovate-lanceolate), either tapering to 

 apex or rounded. 1 to 21/2 (or 4%) inches long, glabrous, green and shining 

 above, pale yellowish green below, the margin entire or spiny-toothed; stami- 

 uate catkins 2 to 3 inches long, sometimes borne in great profusion. 30 to 40 

 from a cluster of terminal buds ; calyx-lobes 4 or 5, hairy pubescent ; stamens 

 4 to 8; acorns ripe in second autumn, borne in clusters of 2 or 3 or singly: 

 cup deeply cup-shaped to hemispherical, embracing 14 to i/^ the nut. 6 or 7 

 lines broad, its scales thin, red-brown; nut cylindric and tapering to the apex 

 or conical, often longitudinally banded with dark lines converging at the 

 summit, I14 to 1% inches long. 



Foothills and valleys from Shasta Co. and Lassen Peak, southward in the 

 Sierra Nevada, Sacramento and San Joaquin valleys to Fort Tejon; North 

 Coast Ranges from Twin Sisters Peak and the Vaca Mts. north along the inner 

 range to Cottonwood Creek (Tehama Co.) and west to LTkiah Valley; also 

 Kidder Creek. Siskiyou Co., ace. Geo. D. Butler. Attains its best development 

 on the east side of the Great Valle.y where it is scattered singly or in small 

 clusters along the fertile benches of the American, Mokelumne, Tuolumne and 

 other rivers : the large dense crowns, as if like great globes resting on the 

 ground witli a segment cut off the lower side, evoke the admiring interest of 

 the traveler. 



Forma extima Jepsou n. form. Acorns remarkably small but uniform ; 

 cup 3 or 4 lines deep; nut 8 or 9 lines long, 3 lines thick. — (Glandes parva? 

 notabiliter sed constantes ; cuj^ula 3 ad 4 lin. in altitudine ; glans 8 vel 9 lin. 

 longa, 3 lin. in diametro). — Kaweah River basin, 4.000 feet altitude, Walter Frj'. 



Var. frutescens Engelm. Intricately and stiffly branched shrub 3 to 7 feet 

 liigli with small leathery leaves. — High mountain summits of the Coast Ranges 

 (1^000 to 4,000 feet): The Terraces near Ukiah (W.L.J, no. 2243), Elk Mt. 

 and IMt. Konokti (Lake Co.), Yaca Mts., Mt. St. Helena, Mt. Tamalpais, Mt. 

 Diablo, Mt. Hamilton and Santa Cruz Mts. ; southward to the Sierra iladre, 

 San Bernardino and San Jacinto ranges in Southern California at 5,000 to 

 7,000 feet altitude. 



Refs. — QuERCUS wislizenii A. DeCandolle, Prodr. vol. 16, pt. 2, p. 67 (1S67), t\-pe loc. 

 American River. Dr. F. A. Wislizenivs ; Jepson, Fl. W. Mid. Cal. p. 144 (1901). 



14. Q. kelloggii Newb. Californlv Black Oak. Graceful tree, commonly 

 30 to 85 feet high, with trunk 1 to 4i/o feet in diameter and mostly erect or 

 ascending main branches; bark black or dark, on old trunks deepl.y checked 

 into small plates ; leaves deeply and mostly sinuately parted with about 3 lobes 

 on each side ending in 1 to 3 or more coar.se bristle-tipped teeth, lustrous 

 green above, lighter beneath, often white with a fine tomentum when young, 

 4 to 10 inches long and 214 to 6 inches wide; staminate catkins II/2 to 3 inches 

 long ; calyx with 4 or 5 scarious lobes, stamens 5 to 9 ; pistillate flowers borne 

 singly or 2 to 7 on a peduncle 3 to 8 lines long; acorns ripe in the second 

 autumn (early in the second summer nuts completely covered by the cups, 

 forming globose knobs about i/o inch in diameter) ; cup large, % to 1 inch 

 deep, % to li^-g inches broad, covered with thin scales which have a mem- 

 branous and sometimes ragged margin : nut t.^iiically oblong in outline, very 



