OAK FAMILY 3d 



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 2^2 (or 4%) inches long, glabrous, green and shining 

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

 nate 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 i/4 to i/2 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, li/4 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 Cotton wood Creek (Tehama Co.) and west to Ukiah Valley; also 

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

 on the east side of the Great Valley 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 with a segment cut off the lower side, evoke the admiring interest of 

 the traveler. 



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

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

 notabiliter sed constantes ; cupula 3 ad 4 lin.' in altitudine ; glans 8 vel 9 lin. 

 longa, 3 lin. in diametro). Kaweah River basin, 4,000 feet altitude, Walter Fry. 



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

 high 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 Mt. Konokti (Lake Co.), Vaca Mts., Mt. St. Helena, Mt. Tamalpais, Mt. 

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

 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 (1867), type loc. 

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



14. Q. kelloggii Newb. CALIFORNIA BLACK OAK. Graceful tree, commonly 

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

 ascending main branches; bark black or dark, on old trunks deeply checked 

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

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

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

 4 to 10 inches long and 2% to 6 inches wide; staminate catkins 1^ 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 % inch in diameter) ; cup large, % to 1 inch 

 deep, % to 1% inches broad, covered with thin scales which have a mem- 

 branous and sometimes ragged margin; nut typically oblong in outline, very 



