84 Bulletin of the Unversity of Texas 
23. Quercus nigra L. Water Oak. A round topped forest 
tree sometimes 80° high with slender branches, smooth, light 
brown bark and reddish twigs. Leaves oblong some of them 

V. é ‘i . ee eee i & = ae 
| ; ra 
\ 
” ae Se ico soo na nae q 
Fig. 20. Quercus nigra. 

three or more lobed toward the apex and _ linear-obovate, 
21,,’-6’ long, 144’-214’ wide, dull green above, paler below, 
petioles short. Fruit solttary or in pairs, sessile or short 
stalked; acorn ovoid 1/2’-2/3’ long and almost as wide, en- 
closed at the base in a thin saucer-shaped cup, often striate. 
