CDPULIFERiE. 



341 Q.tJliRCUS. 



grejish white. Leaves in 4 or 5 lobes wliich are sometimes so arranged as to 

 appear cruciform or stellate. Acorns very sweet. The timber is_ finer 

 Drained, stronger and more durable than white oak, hence it is useful for 

 posis, staves, carriages, «fcc. The crooked branches afford knees for ship- 

 building. ■^'<'« <^"/'"- 



3. Q. macroca'rpa. 



Leaves tomentose beneath, deeply and lyrately sinuate-lobed, lobes obtuse, 

 repand, upper ones dilated ; cupule deep, with tlie upper scales setose ; aiorn 

 ovate, turgid. Most common in the Western States, frequenting limestone 

 hills, but is occasionally met with in Vt. and N. Y. It is CO— 70 feetin hight, 

 clothing itself with dark green, lu.xuriant foliage. Leaves 10—15 inches 

 lonrr; being larger than those of any other species here described. The 

 acorns are also oi extraordinary size, enclosed f of their length in the cup 

 which is usually bordered with hair-like filaments. May. Over-cup IVhile Oak. 



4. Q. OLIViEFO'RJllS. 



Leaves obiong, smooth, glaucous beneath, deeply and unequally sinuate- 

 pinnatifid; CM//deeply bowl-shaped, fringed on tlie edge; acorn oval-ovate. 

 This species of oak is confined to a few districts of N. Y. and Penn. It is a 

 laro-e and majestic tree, chiefly remarkable for its smaller branches always 

 inclining downwards. The "leaves are so irregularly cut and lobed that 

 scarcely'two can be found alike. May. Mussy-cup Oak. 



* Fructification annual. Leaves not mucronate, it dentate, not lobed. 



5. Q,. PRINUS. Willd. Q- Priniis palustris. Mz. 

 Leaves on long petioles, obovate, acute, pubescent beneath, with coarse, 



unequal, dilated teeth, callous at the tip ; cu]i deep, attenuate at base; arorn 

 ovate. This oak is seldom met with in N. England, but abounds in the rest 

 of the U. S. Itis one of tlie loftiest trees of the forest, arising to the hight of 

 50 feet with its undivided, straight and uniform trunk, and thence with its 

 expansive top to the hight of 80—90 feet. Flowers appear in May, succeeded 

 by large and sweet acorns. The timber is valuable in the arts, and makes 

 excellent tuel. Swamp Chestnut Oak. 



6. Q. BI'COLOR. Wil'd. Q. Prinus discolor. .Vx. 

 Leaves oblong ovate, downy, v.hitc underneath, coarsely toothed, entire at 



the base, the teeth unequal, dilated, rather acute, callous at the tip; prtlalts 

 shari ; fruit oil long peduncles, in pairs, cup hemispherical, acorn oblong- 

 ovate. Tlie swamp'oak is diffused throughout most of the U. S., growing in 

 lov,', swampy woods. It is a beautiful tree, attaining in favorable situations 

 the liiTht of 70 feet. Foliasrerich and luxuriant, smooth and green above and 

 white^downy beneath, fro'in which singular contrast is derived the specific 

 name. The trunk is covered with a oreyish white bark v.-hich divides into 

 large fiat scales. It affords excellent fuel" and timber. Sv.amp White Oak. 



7. C. MONTa'NA. IVilld. Q. prinus monticola Mx. 

 Leaves broad ovate, oblong, white downy beneath, shining above, coarsely 



toothed, obtuse and unequal at the base ; teeth very obtuse, siibequal ; fruit m 

 pairs, on short peduncles, cup hemispherical, with rugose and tubercular 

 scales, acorn ovate. This oak. sometimes called rock chestnut oak, is native 

 of the Northern and Middle States, growing in woods and mountain sides, 

 its hight seldom exceeds GO feet, and is generally much less. In open situa- 

 tions its top spreads widely, and symmetrically. The petiole is yellow, rather 

 short. Timber valuable in ship-building, &c. Mountain Oak, 



8. Q. CASTA'NEA. Willd. Q. Prinus acuminata. Mx. 

 Leaves on long petioles, oblong-lanceolate, obtuse at base, acuminate, downy 



beneath, with coarse, subequal, dilated, obtuse teeth ; cup hejnisphericul ; acorn 

 DD* 



