CUPULIEERJE. 



SILVA OF NORTE AMERICA. 



95 



QUEROUS DUMOSA 



Scrub Oak. 



Leaves oblong or obovate, entire, sinute-toothed or lobed, green, pubescent, and 

 often pale on the lower surface. 



Quercus dumosa, Nuttall, Sylva, i. 



( 



(1842). 



Torrey, Quercus dumosa, y acutidens, Weiizig, Jahrh. Bot. GaH. 



Mex. Bound. Surv. 207. — Engelmann, Trans. St. 



Berlin , iii. 204 (1885). 



Louis Acad. iii. 382 (excl. syn. Quercus herberldtfoUa), Quercus MacDonaldi, Gr 



■) 



West Am. OaJcs, 25 



393 ; Breiver & Watson Bot. Col. ii. 96. — Wenzig, Jahrb. 

 Bot. Gart. Berlin^ iii. 203. — Greene, Bull. CaL Acad. 



(1889) ; pt. ii. 73, t. 34. — Sargent, Garden and Forest^ 

 ii. 471. 



ii- 412 ; West Am. Oaks, 35, t. 18, 19 ; Man. Bot, Baij Quercus MacDonaldi, var. elegantula, Greene, West 



Region, 302, — Merriam, North American Fanna, No. 7, 

 334 {Death Valley Exped. ii.). — Coville, Contrib. U.S. 

 Nat. Herb. iv. 197 {Bot. Death Valley Exp ed.). — Sar- 

 gent, Garden and Forest, viii. 93. 



Am. Oaks, 25 (1889) ; pt. ii, 61, t. 29. —Parish, Zoe, iv. 

 346. 

 Quercus dumosa, var. polycarpa, Greene, West Am, 

 Oaks, 36 (1889) ; pt. ii. 61, t 28. 



Quercus acutidens, Torrey, Bot. Mex, Bound. Sitrv. 207, Quercus dumosa, var. munita, Greene, West Am. Oaks, 



t. 51 (1858). 



37, t. 20 (1889). 



Quercus undulata, var. pungens, Engelmann, Breiver & Quercus turbinella, Greene, West Am. Oaks, 37 (1889) ; 



Watson Bot, Gal. ii. 96 (in part) (1880). 



pt. ii. 59 (in part), t. 27. 



An intricately branched rigid shrub^ with stout stems covered by pale gray bark, usually from six 

 to eight feet in height, often forming dense thickets ; or occasionally in the sheltered canons of the 

 California islands rising to the height of twenty-five or thirty feet, with a trunk from twelve to eighteen 

 inches in diameter covered by bright brown scaly bark, and a round-topped head of slender branches. 

 The branchlets are slender, marked with scattered pale lenticels, and coated when they first appear with 

 hoary tomentum ; during their first winter they are ashy gray or light or dark reddish brown and usually 

 pubescent or tomentose. The winter-buds are oval, generally acute, from a sixteenth to an eighth of an 

 inch long, and covered by thin pale red scales often pilose and ciliate. The leaves are convolute in the 

 bud, and when they unfold are thin, clothed with scattered stellate hairs or rarely tomentose on the upper 



surface, and coated on the lower and 

 thick and firm, dark green and ratln 



the petioles with hoary tomentum 



d 



maturity they 



abo 



ve 



d paler and covered more or less thickly with 



pubescence bel 



The leaves of no other North American Oak vary so much in shap 



often on the 



1 



nd they are oblong, broad and abruptly wedge-shaped or rounded at the base, rounded or acute 

 apex, sinuate, spinescent-toothed or entire or occasionally lobed, and usually about three quarters 



of an inch long and half an inch broad, with obscure midribs and primary veins, conspicuous 



d short stout petioles rarely more than an eighth of 



ch in lensrth ; Pfenerally furnished 



with a few small remote spinescent teeth, oblong-obovate leaves, and leaves with undulate and entire or 

 coarsely spinescent margins are common on individual plants, and leaves of all these forms may be found 

 on the same plant; small lobed leaves are not uncommon on plants near the 

 abundant on the islands, where individual plants frequently produce 



but 



most 



oblong or oblong-obovate 



narrowed at the base into long slender petioles and divided by deep sinuses rounded at the bottom 



from five to nine oblonsr lobes, these being 



& 



acute, rounded or emarginate and 



bristle tipped, and 



g in size from the base of the leaf to the apex, which is three-lobed, rounded or acute ; such 

 e sometimes from two to four inches long and from an inch to an inch and a half wide, with 



stout midribs, primary veins running to the points of 

 borne on petioles varying from three quarters of ai 



and ob 



eticulate 



and 



ch to an inch in length, they appear to fall 



