CUPULIFEK^. 



SILVA OF NORTH AMERICA. 



47 



QUERCUS LYRATA. 



Overcup Oak. Swamp White Oak. 



Leaves obovate-oblong, deeply 5 to 9-lobed, or pinnatifid, pubescent and usuall} 

 silvery wbite on the lower surface. 



Quercus lyrata, Walter, Fl. Car. 235 (1788). — Smith & 

 Abbot, Insects of Georgia, ii. 165, t. 83. — Michaux, Hist. 

 Chenes Am. No. 3, t. 4 ; Fl. Bor.-Am. ii. 195. — Willde- 

 now, Spec. iv. pt. i. 453. — Persoon, Syn. ii. 570. 

 Poiret, Lam. Diet. Suppl. ii. 224. — Michaux f . H 

 Arh. Am. ii. 42, t. 5. — Pursh, Fl. Am. Sept. ii. 632. 

 Nuttall, Gen. ii. 215. — Nouveau Duliamel, vii. 181. 



Elliott, Sh. ii. 607. — Sprengel, Syst. iii. 864. 



Sj)ach, 



Hist. Veg. xi. 156. — Dietrich, Syn. v. 311. — Curtis, 

 Rep. Geolog. Surv. N. Car. 1860, iii. 33. — Chapman, Fl. 



m w 



A. cle Candolle, Prodr. xvl. pt. ii. 19. — Orsted, 



423. 



Vidensk. Medd.fra nat. For. Kjbhenh. 1866, 66. 



Wes- 



HoTt 



Koch, 



Dendr. ii. pt. ii. 53. — Engelmanrij Trans. St, Louis Acad. 



111. 



389. 



Ridgway, Froc. TJ, S. Nat. Mas. v. 80. 



Lauche, Deutsche Dendr. 295. — Sargent, Forest Trees 

 N. A')n. 10th Census U. S. ix. 140. — Wenzig, Jahrb. Bat. 

 Gart. Berlin^ iii. 178. — Houba, Chenes Ahi. en BelgiquCj 



73, t. 



Watson & Coulter, Gray's Man. ed. 6, 475. 



Mayr, Wald. Nordam, 146, t. 1, 2. — Dippel, Handb, 

 Laubholzk. ii. 78, f. 31. — Koehne, Deutsche Dendr. 

 127. — Coulter, Contrib. U. S. Nat. Herb. ii. 414 {Man. 

 FL W. Texas). 



A tree, rarely one hundred feet in height, with a trunk from two to three feet in diameter, 

 generally dividing, fifteen or twenty feet above the base, into comparatively small often pendulous 

 branches which form a handsome symmetrical round-topped head and sometimes sweep the ground with 

 their extremities ; or the trunk forks at narrow angles, and the branches, spreading gradually, form an 

 oblong head; or they grow nearly horizontally and form a wider and less symmetrical head. The 

 bark of the trunk is from three quarters of an inch to an inch in thickness, and is light gray tinged, 

 sometimes conspicuously, with red, and broken into thick plates se^^arating on the surface into thin 

 irregular appressed scales. The branchlets are slender and covered with pale lenticels, and when they 

 first appear are green more or less tinged with red and pilose with scattered pale hairs, or pubescent ; 

 during their first winter they are light or dark orange-colored or grayish brown and glabrous or rarely 

 puberulous ; and growing darker, in their second year ultimately become ashy gray or light brown. 

 The buds are ovate, obtuse, about an eighth of an inch long, and covered with Hght chestnut-brown 

 scales, which are clothed, especially near the margins, with loose pale tomentum. The leaves are convo- 

 lute in the bud, obovate-oblong, gradually narrowed and wedge-shaped at the base and divided into from 

 five to nine lobes by deep or shallow sinuses, those near the middle of the leaf being often wide, and 

 round, straight, or oblique at the bottom ; the terminal lobe is oblong-ovate, usually broad, acute at the 



;wo small entire nearly triangular lateral lobes ; the upper lateral 

 broad and slightly or deeply emarginate, or narrowed and acute 



elongated apex, and furnished with 



lobes are oblong, ovate or obovate, 



and often auriculate on the lower edge, and much longer than those below them, which 



ded 



at the ends, usually 

 lobes; when they unfold the lea 

 surface and coated on the 



tire and nearly twice as long as the nearly triangular entire basal 



ves are bronze-green and pilose with caducous hairs on the upper 



lower with thick pale tomentum, and are furnished on the teeth with smaU. 



dark glands 



; at maturity they are thin and firm, dark green and glabrous above, silvery white or rarely 

 light green and coated with pale pubescence below, from seven to eight inches long and from one to 



upper lobes, with stout yellow midribs and primary 



four inches broad across the 



points of the lobes, which are usually tipped with minute points, and obsci 



are borne on stout grooved glabrous or pubescent petioles from one third of 



reticulate 



\ 



ing^ to the 



ilets ; they 

 *ly an inch 



