CUPULIFEU.E. (oak FAMILY.) 423 



13. Q. ilicifolia, Wan?. (Bear-Oak.) Shrubby; leaves obovatc, with 

 3- 5 angular or short and broad mostly entire lobes, acute at the base, white- 

 tomcntosc, like the branchlets, when young, at length smooth and dark green 

 above ; fruit short-peduncled ; cup shallow, saucer-shaped, with coarse scales, 

 enclosing about one third of the ovate nut. (Q. Banisteri, 3/jcAar.) — Barren 

 soil in the upper districts, Georgia, and northward. — A shrub 3° -4° hi^h. 

 Leaves 3' - 5' long. Fruit abundant. 



§ 2. Fruit annual: leaves aivnless, deciduous. 

 * Leaves sinuate-lobed. 



14. Q, Obtusiloba, Michx. (Post-Oak.) Leaves with 5-7 broad 

 rounded or notcliod lobes separated by wide open sinuses, narrowed at the base 

 into a short petiole, pubescent beneath ; cup hemispherical, enclosing one third 

 or one half of the oval nut. — Cold clayey soil, Florida, and northward. — A 

 tree 40° - 50° high. Nut ^' long. Leaves 4' - 6' long. 



Var. parvifolia. Leaves smaller (l^^'- 3' long), oblong, obtuse, entire or 

 sinuate-toothed, nearly smooth on both sides, rusty-pubescent, like the branchlets, 

 when young ; nut larger. — Sand-ridges near the coast, West Florida. — A shrub 

 or small tree. 



15. Q. alba, L. (Whitk Oak.) Leaves oblong or obovate-oblong, with 

 7-9 mostly obtuse and entire narrow lobes separated by narrow sinuses, nar- 

 rowed into a petiole, densely tomentose, like the branchlets, when young, at 

 length smooth or glaucous beneath ; fruit large, nearly sessile ; cup hemispheri- 

 cal, enclosing one third of the oblong-ovate nut. — Damp woods, Florida to 

 Mississippi, and northward. — A large tree with white bark. Leaves 4' - 6' 

 long. Nut about 1' long. 



16. Q. macrocarpa, Michx. (Mossy-cup Oak.) Leaves thin, obovate- 

 oblong, pul)escent or pale beneath, acute at the base, short-petioled, slightly or 

 strongly few- many-lobed ; the lobes rounded, entire or obtusely toothed ; fruit 

 large ; scales of the cup thick, the upper ones produced into long awns ; nut 

 ovoid, included, or half enclosed in the cup. — Woods and river-banks. North 

 Carolina, and northward. — A middle-sized tree. Leaves 6'- 15' long. Nut 

 I'-l^'long. 



17. Q. lyrata, Walt. (Over-cup Oak.) Leaves crowded at the end of 

 the branchlets, obovate-oblong, acute at the base, 7-9-lobed, whitc-tomentose 

 beneath, or at Icngtli smoothish, shining above, the lobes triangular, acute, and 

 entire ; fruit sessile : cup round-ovate, with rugged scales, almost covering the 

 roundish nut. — Ivivcr-swamps, Florida to North Carolina. — A large tree. 

 Leaves 5'- 8' long, short-petioled. Fruit 1' long. 



* * Leaves toothed. 



18. Q. Prinus, L. (Swamp Ciiestnut-Oak.) Leaves oblong or obo- 

 vate-oblong, obtuse, with rounded teeth, smooth and shining above, pale and 

 pubescent beneath, acute at the base, short-petioled; fruit large, short-peduncled; 

 cup hemispherical, rugged with tubercular scales, enclosing the base of the 

 roundish or oblong-ovate nut — Low grounds, Florida to Mississippi, and north- 

 ward — A large tree. Nut about 1' long. 



