65. Fag ACE AE 145 



65. Fagaceae A.Br. — Beech Family 



1. Staminate flowers in small pendent globose heads on slender peduncles; 



nuts sharply trigonal; winter-buds lanceoloid, acuminate 1. Fagus 



1. Staminate flowers in slender catkins. 



2. Staminate catkins erect or ascending, 15-30 cm long; involucre prickly, 



2- to 7-flowered 2. Castanea 



2. Staminate catkins pendent; fruit an acorn in a scaly involucre-cup; 

 winter-buds ovoid, obtuse or acute 3. Quercus 



1 . Fagus L. — Beech 

 F. gra7idifolia Ehrh. Woods, especially near streams, local; chiefly 

 in the valleys of the Mississippi, Ohio, and Wabash rivers; absent from 

 central and western 111. 



2. Castanea Mill. — Chestnut 

 C. dentata (Marsh.) Borkh. Rocky woods, very rare. Probably 

 now extinct in 111. 



3. Quercus L. — Oak 

 1. Leaves entire, elliptical or oblanceolate, bristle-tipped. 



2. Leaves permanently stellate-tomentulose beneath; woods, com- 

 mon. Shingle Oak Q. imbricaria Michx. 



2. Leaves quite glabrous on both surfaces, or sometimes sparsely 



pubescent on the lower suriace along the midvein; borders of 



streams and swamps, rare; Massac Co. Willow Oak 



Q. pliellos L. 



1 . Leaves not entire. 



3. Leaf-lobes with bristle-tips; acorns maturing the second season. 



(Red or Black Oaks.) 

 4. Leaves obovate, the apex obscurely 3- or 5-lobed, abruptly 

 contracted toward the base, brownish stellate-tomentulose 

 beneath; buds conical-fusiform, 8-10 mm long; acorn-cups 

 turbinate, 1.5-2 cm in diameter, enclosing half the acorn; 

 upland woods, in the s. half of the state, extending north- 

 ward to Mercer, Tazewell, and Coles counties. Blackjack 



Oak Q. marilandica Muench. 



4. Leaves pinnately 5- to 9-lobed or cleft. 



5. Leaves grayish-tomentulose beneath; lobes often falcate; 

 acorn globose; cup saucer-shaped; woods, not common; 



s. 111. Spanish Oak. [Q. pagodaefolia Ashe] 



Q. jalcata Michx. 



5. Leaves glabrous or nearly so, not grayish-tomentulose 



beneath, but often with tufts of hairs in the axils of 



the principal veins. 



6. Leaves lobed about halfway to the midvein ; acorn-cup 



shallow, saucer-shaped; winter-buds nearly glabrous; 



inner bark gray or reddish ; woods, common. Red 



