FAGACE^E 



295 



narrow lobes, densely tomentose below, and in the thicker and more tomentose scales of 

 the cup; sandy uplands, Elk City, Beckham County, Oklahoma. Var. rufescens Sarg., a 

 shrub 12-15 high, forming large clumps, differing from the type in the rusty brown 

 pubescence on the lower surface of the polymorphous leaves, in the deeper cups of the 

 fruit with thicker basal scales; sandy uplands, Big Spring, Howard County, Texas, and Elk 

 City, Beckham County, Oklahoma. Var. Boyntonii Sarg, a shrub or small tree spreading 

 into thickets, rarely more than 15 in height, differing from the type in its obovate leaves, 

 mostly 3-o-lobed toward the apex, with small rounded lobes, and in their yellow-brown 

 pubescence also found on the branchlets; in glades on the summit of Lookout Mountain, 

 above Gadsden and Attala, Etowah County, Alabama. 



The common and most widely distributed of the varieties of the Post Oak is 



Quercus stellate var. Margarette Sarg. 

 Quercus Margaretta Ashe 



Leaves oblong-obovate, rounded at apex, cuneate or rounded at base, 3-5-lobed with 

 usually narrow rounded, but often broad and truncate lobes, the two forms frequently 

 occurring on the same branch, usually becoming glabrous on the upper surface early in 

 the season, slightly pubescent, sometimes becoming nearly glabrous below, 2^'-5 / long and 

 2'-2|' wide; petioles glabrous or pubescent. Flowers and Fruit as in the species. 



A small tree, rarely 40 high, with slender glabrous reddish or reddish brown branchlets. 

 Winter-buds ovoid, acute, \' long with closely imbricated chestnut-brown scales glabrous, 

 or ciliate on the margins. Bark thick, rough and furrowed, light gray. 



Distribution. Usually on dry sandy slopes, hills and ridges, and southward on Pine- 



Fig. 270 



barren lands; coast of Virginia (Capron, Southampton County) southward in the coast 

 and middle districts to central (Lake and Orange Counties) and western Florida, through 

 central and southern Alabama, and eastern and southern Mississippi: in Western Louisi- 

 ana (Natchitoches and Caddo Parishes) ; southern Arkansas (McNab. Hempstead County), 

 and southwestern Missouri (Prosperity, Jasper County). The common Post Oak of the 

 south Atlantic and Gulf states; occasionally a shrub (f. stonolifera Sarg.) 4-6 high, with 

 smaller leaves, spreading into broad thickets by stoloniferous shoots; common near Selma, 

 Dallas County, Alabama, and on the dry sand hills of central Oklahoma. 



X Quercus Harbisonii Sarg., believed to be a hybrid of Quercus stellata var. Margaretta 

 and Q. virginiana var. geminata, has been found in the neighborhood of Jacksonville, 

 Duval County, Florida. 



