504 FLORA OF TEXAS. 



what coriaceous, broad, narroAved into a short petiole, 

 deeply pinnatifid, the lobes very acute from a broad base, 

 spreading, mostly falcate and entire ; fniit rather large, 

 short-peduncled ; ciq) thick, turbinate, with broad obtuse 

 scales, inclosing half of the ovoid mit; the upper scales in- 

 flexed and lining the inner edge of the cup. Dry pine- 

 barrens. — A small tree; leaves 6-9' long. 



Q. TiNCTORiA, Bartr. {Black Oak.) Leaves obovate-ob- 

 long, with deep or shallow open sinuses, and about 6 sharp- 

 ly-toothed lobes, obtuse or truncate at the base, pubescent 

 when young, at length only in the axils of the veins be- 

 neath ; cup top-shaped, with broad scales, inclosing about 

 half of the roundish depressed nut. (Q. discolor, Ait.) Dry 

 woods. — A large trecy with the outer bark dark brown, the 

 inner thick and yellow^ ; leaves turning light brown after 

 frost; nuts 6"-8" long. 



Q. cocciNEA, Wang. (Scarlet Oak.) Leaves long peti- 

 oled, oval or oblong, with deep and broad sinuses, and 6-8 

 entire or sparingly toothed lobes, truncate at the base, 

 smooth and shining on both sides ; ciq) top-sliaped, with 

 coarse scales, inclosing one-half or one-third of the ovoid 

 nut. Dry woods, more abundant in the upper districts. — A 

 large tree, not easily distinguished from the preceding, 

 and probably only a form of it ; leaves turning bright scar- 

 let after frost. 



Q. RUBRA, L. {Red Oak.) Leaves oblong, wath open 

 shallow sinuses, and 8-12 entire or sharply toothed lobes, 

 smooth on both sides, paler beneath; fruit large; cup 

 shallow, flat, with fine scales, inclosing the base of the 

 ovate or oblong nut. Rocky woods. — A large tree ; leaves 

 turning dark red after frost; nut V long. 



Q. Georgiana, M. a. Curtis. Shrubby; leaves small, 

 very smooth, somewhat obovate, wedge-shaped at the base, 

 with deep or shallow open sinuses, and 3-5 triangular- 

 lanceolate entire acute or obtuse lobes ; fruit short pedun- 



