331 



M Leaves entire.' dentate. 



19. Q. prinus Linn. : leaves on long petioles, obovate, acute, pubes- 

 cent beneath, coarsely toothed ; teeth unequal, dilated 1 , callous at the 

 point ; cup deep, attenuate at base; aaorn ovate. Q,. prinus palustris 

 Mich. jr|t 



HAB. Shady woods. N. Y. to Floiv May. T?. A large tree, 

 Leaves large, on petioles about an inch long. Cup hemispher- 

 ical, enclosing about one third of the acorn, on. short peduncles. 

 Acorn^ large. Timber inferior to that of the preceding, but often 

 employed indiscriminately with it. Swamp. Chesnut Oak. 



20. Q. licolor Wilid. : leaves on short petioles, oblong- obovate, whiU 

 ish tomentose beneath, coarsely toothed, very entire at the base ; teeth 

 unequal, dilated, rather acute, callous at the summit ; fruit .in pairs, 

 on long peduncles ; cup hemispherical ; acorn oblong-ovate. Q. prin- 

 us discolor Mich.'f. 



HAB. Low woods and 'swamps. N. Y. to Car. May. *?. A 

 large tree, with the bark separating into large flat scales or plates. 

 'Leaves variable. Acorn large, in a small, cup. Its timber is* in 

 less repute than that of many other species. Sw'amp White Oak. 



21. Q. -montana Willd. : leaves on petioles, broad-obovate, oblong, 

 white tonlfentose beneath, shining above, coarsely toothed, obtuse and 

 unequal at the base ; teeth nearly equal, very obtuse ; fruifin pairs, 

 on short peduncles ;. cup _ hemispherical*; scales tuberculate, rugose;' 

 acorn ovate.' Q. primis tnonticola Mich. 



HAB. In rocky situations. N. Y. to Car. May. t?. A tree of 

 less size than the two preceding. Its wood resembles the white 

 oak.in sti-ength, and its bark is highly esteemed by tanners. For 

 fuel it is scarcely exceeded in value by any of our trees. 



Rock 'Chesnut Oak. 



22. Q. castanca MuhL : leaves on long petioles, oblong-lanceolate, 

 obtuse at base, acuminate, tomentose beneath, coarsely toothed ; teeth 

 unequal, dilated, acute, callous at the point ; cup hemispherical ;' acorn 

 ovate, subglobose. Q. prinus acuminata Mich. 



HAB. Mountains! N. Y. to Geor. May. >>. A tree 60 70 

 feet high. Leaves on long petioles and narrower than those, of 

 the former. Fruit middle-sized, on short peduncles. In name 

 and use it is often confounded with Q. prinus. Yelloio Oak. 



23. Q. chinquapin Mich. .' leaves on shqrt petioles, obovate, acute at 

 the base, coarsely toothed, glaucous beneath ; teeth nearly equal, di- 

 lated,, callous at the point ; cup hemispherical ; acorn ovate. Q. prin^ 

 aides Willd. 



.HAB. Barrens. N. Y. to Geor. May!, Tp. A "shrub from 3 4 

 feet high. Acorns small, numerous. It occurs in tracts or 

 patches intermingled with'Q. bannisteri. 



Chinquapin. Dwarf Chesnut Oak, 



%&''. . ": 12. CASTANEA. Tourn. 



Monoecious. STERILE FL. Ament very long, cylindrical. 



