The FRUIT is an acorn about 1 inch long and ⅓ inch wide, borne on a long stem or peduncle; it is oblong, dark brown and lustrous, and set in a top-shaped, downy cup of a light reddish-brown color. The acorn matures at the end of the first season. The WOOD is very heavy, hard, strong and tough, light brown or yellow, with nearly white, thin sapwood. It was formerly largely used in ship building. MOHRS OAK (Shin Oak) Quercus mohriana Buckl. Over a wide section of Central Texas, on inferior soils, are found four or more species of “shin” oaks, so called from their low-growing bushy habit. Mature trees vary from 3 to 18 feet high. These are considerably alike in foliage and fruit. The “oak shinneries” form a forest cover in Central Texas that affords watershed protection on the head waters of some of the state’s main rivers. [Illustration: MOHRS OAK (Fruit, natural size; leaf, two-thirds natural size)] The tree has a thin, pale-colored BARK, rough, with deep furrows running up and down the tree. The deciduous LEAVES of the above small-tree species of shin oak are elliptical, pointed or rounded at the end, smooth or wavy or sometimes lobed or slightly toothed along the margin. They are thick, gray-green, dense hairy beneath, about 3 inches long by 1 inch wide. The acorns, or FRUIT, occur solitarily or in pairs, on very short peduncles, and mature in one season. They are small, deeply enclosed in a relatively heavy cup, thin toward the outer end. The WOOD of Mohrs oak is not of economic importance. DURAND OAK (Durand White Oak) Quercus durandii Buckl. This oak is found on the well-drained soil of river bottoms from the coast region of East Texas to the bottoms of the Guadalupe River (Victoria County) and inland to San Saba County, and the Dallas area. It forms a tree 60 to 90 feet high with a tall trunk 2 to 3 feet in diameter; comparatively small branches, the lower horizontal, the upper ascending, forming a dense, round-topped, handsome head. [Illustration: DURAND OAK (Leaves and fruit, one-half natural size)] The BARK is thin, light gray or nearly white and broken into loose appressed scales. The deciduous LEAVES are 2½ to 7 inches long, yellow-green, thin, smooth on the edges, three-lobed toward the tip, or irregularly lobed, the three forms appearing on different branches of the same tree. The FRUIT, an acorn, solitary or in pairs on a very short peduncle, is nearly egg-shaped, pale chestnut-brown, shinning, ½ to ¾ inch long, and barely enclosed at the base in the thin saucer-shaped cup. The acorn matures in one season. The WOOD is hard and heavy and is used largely as fuel. WHITE OAK Quercus alba L.