lUO FiKLD Manual 



7. Q Kerens robiir L. English Oak. A large strong 

 tree with stont mere or less spreading branches forming a 

 hroad round-topped head; self-prunes. Many forms are cul- 

 tivated for ornament, including yellow-leaved and cut-leaved 

 varieties, also forms with varied l)ranches. Native of Europe. 

 ^^•^ Quercus stellata Wang. Post Oak. A shrub or 

 usually a small tree with a long tap root and with rough gray 

 bark and valuable wood. Leaves broadly obovate, deeply 

 lyrate-pinnatifid, glossy and stellate-pubescent above, brown- 

 tomentulose beneath, 4-8 in. long; cup hemispheric, nearly 

 sessile; acorn ovoid, 2-3 times as long as the cup, very sweet. 

 In dry soil. Mass. to Ohio, Mich., Iowa, Fla., and Tex. 



!>. Quercus lyrata Walt. Overcup Oak. A large tree 

 with gray or reddish bark in thin plates. Leaves obovate, 

 lyrate-pinnatifid or lobed to beyond the middle 6-8 in. long, 

 shining above, densely white-tomentulose beneath, cup de- 

 pressed-globose, peduncled, 1-1^ in- broad; acorn depressed- 

 globose, nearly or quite immersed in the cup. Wood like in 

 white cak. In swamps. N. J. to Ind., Mo., Fla., and Tex. 



10. Quercus macrocarpa Mx. Bur Oak. A large tree 

 with bark in narrow rough ridges, slightly flaky, and with a 

 long tap root. Leaves obovate or oblong-obovate, irregularly 

 lobed, pinnatifid, or coarsely crenate shining above, grayish- 

 white-tomentulose beneath, 4-8 in. long; cup short peduncled 

 or sessile, hemispheric or subglobose, ^-1 in. broad, the tips 

 of the bracts forming a fringe around the acorn ; acorn 

 ovoid. 1-2 times as high as the cup. Self-prunes abundantly. 

 -A. very valuable tree with hard and tough wood resembling 

 the White Oak. In rich soil or on river bluffs where it is 

 sometimes small and shrubby. N. S. to Man., Mass., Ga., 

 Wyom., Kan., Tex. 



Jl'illow oaks. 



11. Quercus imbricaria Mx. Shingle Oak. A large 

 stout tree, the leaves dying off but remaining on the tree until 

 about April L Leaves oljlong or lanceolate, entire, persist- 

 ently gray-tomentulosc beneath, 3-7 in. long; cup hemis- 

 pheric or turbinate, about J in. broad; acorn subglobose. 

 l)itter. Wood poor; used for shingles and clapboards. Self- 

 prunes twigs by means of basal joints. Q. leana Nutt. is a 

 hybrid of this and Q. z'elutina. Q. fridentofa Engelm. is a 



