CUPULIFEEAE 267 



5. Q. l'i inns. L. Leaves obovate-oblong, acute, nearly equally 

 and obtusely dentate, green above ; acorn ovoid, large. 



Swamp Chestnut-Oak. 



SUm, 60 to 90 feet high. Leaves 5 to 8 inches long, conspicuously penninerved, 

 vtth a coarse tooth for each nerve, and a small callus at apex of each ; petioles I to 

 near 2 inches in length. Fruit in pairs (1 often abortive) on a common peduncle 

 about half an inch long; acorn rather thicker than the preceding, but not quite 

 BO long. 

 Hob. Great Valley : not very common. 



Obs. This species which is often a fine tree, affording valuable 

 timber: presents some varieties; while the whole group have such a 

 general resemblance, that the elder MICHAUX reduced them all to 

 modifications of Q. Prinus* 



6. O. Castaiica, Willd. Leaves oblong-lanceolate, acuminate, 

 equally and rather acutely dentate, yellowish above ; acorn roundish- 

 ovoid, rather small. 



CHESTNUT QUERCUS. Chestnut-Oak. Yellow Oak. 



Stem 50 to 80 feet high. Leaves 3 to 6 inches long, the points of the teeth (and 

 along the whole edge of the leaf) callous ; petioles % an inch to an inch long. Frutt 

 sessile, or on what seems designed for a short common peduncle* Acorn sweetish 

 and nutritious. 

 Hob. Great Valley; near Brooke's Mill : not common. 



Obs. This is also variable ; but, generally, the leaves^- both in size 

 and figure have a striking resemblance to those of the Chestnut-tree. 



"S* Q prinoides, Willd. Dwarf; leaves obovate and lance- 

 oblong, obtuse or acute, coarsely (or often obsoletely) sinuate- 

 dentate, acute at base ; acorn ovoid, small. 

 Q. chinquapin. MX. $ Fl. Cestr. ed. 2. p. 536. 

 PRINUS-LIKE QUERCUS. Dwarf Chestnut-Oak. Chinquapin-Oak. 



Stem 2 to 4 or 5 feet high, slender and much branched. Leaves 3 to 5 or 6 inches 

 long, the teeth mostly obtuse, often nearly obsolete, or the margin merely 

 repand; petioles 14 to % an inch in length. Fruit sessile, often abundant. 

 Hob. Dry, slaty hills : frequent. 



Obs. There seems to be two varieties of this shrub ; the leaves of 

 one looking like a dwarf specimen of Q. montana, and of the 

 other, like a miniature Q. Castanea. 



2. FRUIT BIENNIAL; clusters sessile 

 f 1 1 Black and Red-Oak group ; leaves setaceoudy mucronate, repand, or acutely 



sinuate-lobed. 

 * Cupule subturbinate at base. 



8. Q. iiiif ra, L. Leaves broadly cuneate, dilated at apex, and 

 repand or obscurely 3- or 5-lobed at the end, rusty-puberulent 

 beneath ; cupule very scaly ; acorn roundish-ovoid, rather small. 

 BLACK QUERCUS. Black-Jack. 



Stem 20 to 30 or 40 feet high, with a thickish furrowed dark-colored bark. 

 Leaves 5 to 8 inches long, and 4 to 6 inches wide at apex, narrowed rapidly towards 

 the obtuse base, so aa to be almost triangular, coriaceous, the bristle-like points 

 somewhat deciduous; petioles about half an inch in length. 

 Hob. Thin soils; West Nottingham: rar. 



