Distribution. Rich bottom-lands and on low adjacent hills of streams flowing southward from the Edward’s Plateau (Goliad, San Antonio, New Braunfels, San Marcos) and near Austin, Travis County, Texas.

4. [Celtis reticulata] Torr. Hackberry.

Leaves broadly ovate, acute or acuminate, obliquely rounded at base, entire, thick, dark green and rough or rarely smooth on the upper surface, yellow-green and conspicuously reticulate-venulose and sparingly pilose along the prominent midrib and veins on the lower surface, 1¼′—3′ long, ¾′—1½′ wide; petioles stout, ⅛′—¼′ in length, more or less densely pubescent. Flowers not seen. Fruit on pubescent pedicels ⅓′—½′ in length, ripening in September, subglobose to ellipsoid, orange-red or yellow, lustrous, ¼′ in diameter.

A tree, rarely 30° high with stout ascending branches forming an open irregular head, and slender red-brown branchlets tomentose or pubescent early in their first season and pubescent or glabrous in their second year; or often a shrub. Bark thick and rough.

Distribution. Dry limestone hillsides, rocky ridges and cañon slopes, western Texas, from the valley of the upper Rio Frio, Uvalde County, to Oklahoma (Ozark region, near Page, Le Flore County to the southwestern borders of the state); in mountain ravines through southern New Mexico, and in southern central and northeastern Arizona.

A variety with more pubescent serrate leaves, those on vigorous shoots mostly cordate at base and covered above with short white hairs, is distinguished as var. vestita Sarg. A small tree with slender pubescent branchlets and a trunk 12′—15′ in diameter. In low ground, along the North Fork of the Canadian River, near Canton, Blaine County, Oklahoma.

5. [Celtis laevigata] K. Koch. Sugarberry. Hackberry.

Celtis mississippiensis Spach.