400 CUPULIFER.fi. (OAK FAMILY.) 



# * # Leaves deciduous, but rather coriaceous, mostly diluted iipii\ir:h and chscurcly 

 lobed or entire in the same individual, sonictinies more conspicuous/ 1/ lobed, often more 

 or less bristle-pointed at the sunn/tit and extremities of some of tin- hinjer veins. 



11. <fc. aquutica, Catesby. (WATER-OAK.) Leaves glabrous and shi*- 

 ing, obomtc-sjiatu/ate or narrotrly tcedc/e-fonn, with a lout/ tapering base, varying to 

 oblanceolate ; cup saucer-shaped or hemispherical, of fine and close scales, much 

 shorter than the globular acorn. Wet grounds, around p >nds, &r., Maryland 

 to Virginia and southward. Tree 30 -40 high. Acorn ' long; the cup of 

 the same width. 



12. Q. aiigra, L. (BLACK-JACK or BARREN OAK.) Leaves broadly wedge- 



shaped, but mostly rounded or obscurely cordate at the base, iciddy dilated and 

 somewhat 3-lobed (rarely 5-lobed) at the summit, occasionally with one or two 

 lateral lobes or teeth, rusty-pubescent beneath, shining above, large (4'- 9' long); 

 ciip top-shaped, coarse-scaly, covering half of the short ovoid acorn. (Q. fcrru- 

 ginca, ^[i<:hx.} Dry sandy barrens, from Long Island, New York, to Illinois, 

 and southward. Tree 8 -25 high. Acorn '-' long. Leaves occasion- 

 ally rather deeply lobed, the lobes strongly bristle-pointed. Under the name 

 of Q. TRIDENTA.TA, Dr. Engelmann distinguishes a remarkable Oak. apparently 

 a hybrid between this and Q. imbricaria. Under this section the following re- 

 markable forms, by some regarded as species, would be sought, viz. : 



Q. LEANA, Nutt. (LEA'S OAK), of which single trees are known near Cin- 

 cinnati, Ohio, and Augusta, Illinois (Mead), is probably a hybrid between Q. 

 imbricaria and Q. tinctoria, or possibly Q. nigra. 



Q. HETEROPHYLLA, Michx. (BARTRAM OAK),rediscovered in Del aware, (tc. 

 apparently a hybrid between Q. Phellos and Q. tinctoria? 



# * * * Leaves deciduous, lobed or pinnatifid, long-pet iohd, the tips of the lobes bris- 



tle-pointed. BLACK and RED OAKS. 

 H Mature leaves downy underneath. 



13. Q. ilicifolia, Wang. (BEAR or BLACK SCRUB-OAK.) Dirnrf; 

 leaves ol>ovate, wedye-shaped at the base, angularly about 5-/WW, whitened-ikwny un- 

 derneath ; cup flattish-top-shaped ; acorn ovoid. Sandy barrens and rocky lulls, 

 New England to Ohio and W. Virginia. (Q. Banisteri, Michx.) A straggling, 

 crooked shrub, 3 - 8 high. Leaves 2' -4' long, thickish. Acorns barely ' 

 long. 



14. Q. falcata, Michx. (SPANISH OAK.) Learns yrayish-dou-ny under- 

 neath, obtuse or rounded at the base, 3 - 5-lobed above ; the lobes prolonged, iostly 

 narrow and more or less scythe-slutped, especially the terminal one, entire or spar- 

 ingly out-toothed ; cup saucer-shaped; acorn spherical or somewhat depressed (' 

 long). Dry or sandy soil, from New Jersey and Illinois southward. A small 

 or large tree, extremely A r ariable in foliage: a variety with shorter loin* is Q. 

 triloba, WiUd. 



H- -i- Mature leaves glabrous on both sides or nearly so. 



M- Cup conspicuously scaly, more, or I(*s t<>{>-s/ij><d or contracted at the law : a ecru 

 one third or nearly half ii/um ;>< <l. 



15. Q. tilictorisi, Bartram. (QUERCITRON or BLACK OAK. TELLOW- 

 BARKED OAK.) Ltaccs more or less runty-pubescent irhcn yon'j, nearly glabrous 



