430 BOTANICAL GAZETTE [MAY 
VirGinta.—Near Suffolk, Nansemond County, A. Rehder, August 18, 1908. 
On the tree at Loranger, Louisiana, a few of the leaves are elliptical to 
oblong-obovate, entire and acuminate at the ends. On Cocks’s specimens from 
New Orleans the leaves at the base of the branches are broad at the apex and 
distinctly 3-lobed with rounded lobes, and the lobes are narrow and long- 
acuminate and are often also laterally lobed. 
Quercus microcarya Small appears to be only a depauperate 
form of var. tridentifera, which may be called 
/QUERCUS NIGRA Var. TRIDENTIFERA f. microcarya, n. f£—Q. mi- 
crocarya Small, Bull. Torr. Bot. Club 28:357. 1901.—Differing from 
Q. nigra var. tridentifera in its smaller leaves and fruit and in its 
dwarf habit. 
Crevices in the rocks and in thin dry soil on the slopes of Little Stone 
Mountain, Dekalb County, Georgia. 
VQuercus rhombica, n. sp.—Leaves rhombic, rarely oblong- 
obovate to lanceolate, acute or rounded and apiculate at apex, cune- 
ate at base, the margins entire and slightly undulate, on vigorous 
shoots occasionally furnished near the middle with a pair of short 
broad or rounded lobes; when they unfold, deeply tinged with 
red, covered with short pale caducous pubescence, and furnished 
below with more or less conspicuous usually persistent tufts of 
axillary hairs, and at maturity thin, dark green and lustrous on the 
upper surface, pale on the lower surface, 9-12 cm. long and 3.5- 
5 cm. wide, with stout conspicuous yellow midribs and slender 
primary forked veins; turning yellow and falling gradually in early 
winter; petioles yellow, 5-12 mm. in length. Flowers not seen. 
Fruit ripening at the end of the second season, sessile or short- 
stalked; nut ovate, rounded at apex, thickly covered with pale 
pubescence, about 1 cm. long and 1.5 cm. in diameter, with a thin 
shell lined with hoary tomentum and pale orange colored cotyledons; 
cup saucer-shaped to cup-shaped, rounded on the bottom, silky 
pubescent on the inner surface, the scales reddish brown, rounded 
at apex, slightly pubescent, loosely appressed with free tips, those 
of the upper rank thin and ciliate on the margins. 
A tree often 40-50 m. high, with a tall trunk 1-1. 5 m. in diameter, covered 
with pale slightly furrowed bark, stout wide spreading smooth branches form- 
ing a broad head, and slender glabrous branchlets red brown in their first 
season and dark gray the following year. 
