40G cupulifeRjE. (oak family-.) 



* * * Leaves deciduous, but rather coriaceous, mostly dilated upwards and obscurely 

 lobed or entire in the, same individual, sometimes more conspicuously lobed, often more 

 or less bristle-pointed at the summit and extremities of some of the larger veins. 



11. C£. smpiiifcica, Catesby. (Water-Oak.) Leaves glabrous and shin- 

 ing, obovate-spatulate or narrowly wedge-form, with a long tapering base, varying to 

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

 shorter than the globular acorn. — Wet grounds, around ponds, &c, Maryland 

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

 the same width. 



12. Q. Eiigrst, L. (Black-Jack or Barren Oak.) Leaves broadly wedge- 

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

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

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

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

 ginea, Michx.) — Dry sandy barrens, from Long Island, New York, to Illinois, 

 and southward. — Tree 8° -25° high. Acorn i'-f long. Leaves occasion- 

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

 of Q. tridentAta, 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 Delaware,tfcc. 

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



* * * * Leaves deciduous, lobed or pinnatifid, long-pet ioted, the. tips of the loltes bris- 



tle-pointed. — Black and Red Oaks. 

 -t- Mature leaves downy underneath. 



13. €£. ilicifolia, Wang. (Bear or Black Scrub-Oak.) Dwarf; 

 leaves obovate, wedge-shaped at the base, angularly cdiout 5-lobed, whitened-downy un- 

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

 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. falclita, Michx. (Spanish Oak.) Leaves grayish-downy under- 

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

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

 ingly eut-tootbed; 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 variable in foliage : a variety with shorter lobes is Q. 

 triloba, Willd. 



-t- -<- Mature leaves glabrous on both sides or nearly so. 



•m- Cup conspicuously scaly, more or less top-shaped or contracted at the base: acorn 



one third or nearly half immersed. 



15. C£. tiBtctoiia, Bartram. (Quercitron or Black Oak. Yellow- 

 barked Oak.) Leaves more or less rusty-puoescen: when young, nearly glabrous 



