190 CUPULIFER^. Quercus. 



6. Quercus palustris, Du Boi. (PI. CVII.) Pin Oak. Water Spanish OaJc 



Leaves on long petioles, deeply sinuate-lobed with broad obtuse sinuses, smooth on both 

 sides ; the lobes toothed, setaceously mucronate ; cup saucer-shaped ; nut nearly globose 

 (small).— "Du Roi, harbk. 2. t. b.f. 4;" Michx. Querc. t. 33 - 34, andfl. 2. p. 200 ; Pursh, 

 jl. 2. p. 631 ; Michx. sylv. \. t.21 ; Torr. compend. p. 358 ; Beck, hot. p. 329 ; Darlingt. 

 fl. Cest. p. 532. 



A tree 40 - 80 feet high and 2-3 feet in diameter, with numerous spreading slender 

 branches and smoothish bark. Leaves 3-5 inches long, and broader in proportion than in 

 any of the preceding species, bright green and shining ; the sinuses extending three-fourths 

 of the way to the midrib, and very broad : petioles 1-2 inches long. Acorns numerous, on 

 short peduncles ; the cup shallow and smoothish, slightly turbinate : nut less than half an inch 

 long, mostly globose, light brown. 



Low woods, particularly on the borders of streams ; common in the southern part of the 

 State. Fl. May. Fr. October. The wood is strong, and held in estimation by wheelwrights, 

 but it is not considered durable. It is sometimes called Swamp Spanish Oak. 



7. Quercus ilicifolia, Wang. Bear Oak. Barren Scrub Oak. 



Leaves on rather short petioles, cuneate-obovale, angularly about 5-lobed, grayish-tomentose 

 underneath ; lobes entire, mucronate ; cup somewhat turbinate ; nut roundish-ovoid. — Wang. 

 Amer. p. 79. «. 6. /. 17 ; Ait. Kew. (ed. 2.) 5. p. 292 ; Bigel. fl. Host. p. 352 ; Ell. sk. 2. 

 p. 605. Q. Banisteri, Michx. Querc. t. 27, and fl. 2. p. 199 ; Michx. f sylv. 1. J. 21 ; 

 Pursh, fl. 2. p. 631 ; Beck, hot. p. 330 ; Darlingt. fl Cest. p. 533. 



 A straggling much branched shrub, 3-8 feet high, usually growing in dense masses. 

 Leaves 2-4 inches long, obtusely cuneate at the base and tapering into a petiole about half 

 an inch in length, mostly 5-lobed ; the lobes short and angular. Acorns numerous : scales 

 of the cup obtuse, minutely pubescent, closely imbricated : nut half an inch long, roundish 

 or somewhat ovoid, dark brown and striate with pale lines. 



Sterile sandy soils, and on rocky hills. Abundant on Long Island ; summit of the Fishkill 

 mountains, and other parts of the Highlands ; sandy plains near Schenectady, Rome, &c. 

 Fl. May. Fr. September. A worthless species. In some places it is called Black Scrub 

 Oak. 



** Prudificaiion annual ; fruit mostly pedunculate. 

 t Leaves sijiuate-lobed ; the lobes not mucrotiate. 



8. Quercus obtusiloba, Michx. Post Oak. Box White Oak. 



Leaves deeply sinuate-lobed, cuneate at the base, grayish-pubescent underneath ; lobes 

 obtuse, the upper ones dilated and retuse ; cup hemispherical ; nut ovoid. — Michx. Querc. 

 t. 1, and fl. 2. p. 194 ; Pursh, fl. 2. p. 631 ; Ell. sk. 2. p. 606 ; Michx. sylv. I. t. 5 ; Torr. 

 compend. p. 359 ; Beck, bot. p. 330 ; Darlingt. fl. Cest. p. 533. Q. stellata, Willd. sp. 4. 

 p. 452 ; Muhl. cat. p. 87. 



