CUPUHFERJE. (OAK FAMILY.) 423 



13. Q. ilicifolia, Wang. (BEAR-OAK.) Shrubby ; leaves obovatc, with 

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

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

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

 enclosing about one third of the ovate nut. (Q. Banisteri, Michx.) Barren 

 soil in the upper districts, Georgia, and northward. A shrub 3 - 4 high. 

 Leaves 3' - 5' long. Fruit abundant. 



2. Fruit annual: leaves awnless, deciduous. 

 # Leaves sinuate-lobed. ^ 



14. Q. obtusiloba, Michx. (POST-OAK.) Leaves with 5-7 broad 

 rounded or notched 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 (!' -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. (WHITE 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, pubescent 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'-lJ'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, white-tomentose 

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

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

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

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



* * Leaves toothed. 



18. Q. Prinus, L. (SWAMP CHESTNUT-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. 



