1480 



QUERCUS 



QUERCUS 



2046. Quercus lobata (X 



No. 27. 



branches, of pyramidal habit in its youth, round-topped 

 when old: Ivs. oblong or oblong-lanceolate, dark green 

 and glabrous above, grayish tomentulose beneath, 3-7 in. 

 long: fr. short-stalked; acorn subglobose, % in. long, em- 

 braced one-third to one-half by the turbinate cup. Pa. to 

 Ga., west to Neb. and Ark. S.S. 8:432. A.G. 17:195. Mn. 

 6:91. -Beautiful Oak of 

 symmetrical habit with 

 handsome glossy foliage, 

 turning russet - red in 

 fall. There are several 

 hybrids of this species 

 and No. 11 with other 

 Black and Red Oaks ; 

 one of them is in the 

 trade as Q. palustri- 

 imbricdria, Engelm.: it 

 has oblong - lanceolate 

 Ivs., entire or coarsely toothed, with bristly teeth, soon 

 glabrous, 4-6 in. long: cup turbinate. For other hy- 

 brids of this group see S.S. 8:433, 434, 436, 437. 



13. laurifdlia, Michx. LAUREL OAK. Tree, to 60, oc- 

 casionally to 100 ft., with comparatively slender branches 

 forming a dense, round -topped head: Ivs. oblong or ob- 

 long-obovate, sometimes slightly lobed, dark green and 

 shining above, light green and puberulous at first, gla- 

 brous at length below, 2-6 in. long: fr. short-stalked; 

 acorn ovoid or subglobose, about % in. long, embraced 

 one-fourth by the saucer-shaped cup. Va. to Fla. and La. 

 S.S. 8:429, 430. Handsome tree with almost half-ever- 

 green glossy foliage, often planted as avenue tree in the 

 southern and Gulf states ; not hardy north. 



14. variaMlis, Blume (Q. Bungeana, Forb. Q. CTii- 

 nensis, Bunge, not Abel). Tree, to 80 ft.: Ivs. slender- 

 petioled, oblong to oblong^lanceolate, acuminate, cre- 

 nately serrate, with bristle-like teeth, dark green and 

 glabrous above, whitish tomentulose below, 3%-6 in. 

 long: fr. almost sessile; acorn subglobose, not much 

 exceeding the large cup; scales thick, lanceolate, re- 

 curved. N. China, Japan. Handsome tree with distinct 

 foliage almost like that of Castanea crenata ; has proved 

 hardy in Mass, and western N. Y. 



15. dentata, Thunb. (Q. Dalmio, Hort.). Tree, to 80 

 ft., with broad, round-topped head: Ivs. short-petioled, 

 obovate, sinuately toothed, with 3-6 rounded broad teeth 

 on each side, dark green and usually glabrous above at 

 length, light green and pubescent beneath, firm and 

 leathery, to 12 in. long: fr. almost sessile; acorn ovate, 

 %-% in. long, embraced one-half by the large cup ; scales 

 lanceolate, thin, spreading and recurved. Japan. Re- 

 markable for its large Ivs., on young plants to 1 ft. long 

 and 8 in. broad; hardy north. Var. pinnatifida, Mat- 

 sum. (Q. pinnatifida, Franch. & Sav. ). Lvs. divided 

 almost to the midrib into linear lobes with crisp irregu- 

 lar margins; interesting form. 



2047. White Oak (X%). No. 28. 



16. Mongolica, Fisch Tree, to 100 ft. : Ivs. obovate 

 or obovate-oblong, much narrowed below the middle, 

 coarsely toothed with acute or mucronulate teeth, bright 

 green above, light green beneath, with long hairs along 



the veins, almost glabrous at length, 3-7 in. long: fr. 

 almost sessile, acorn %-% in. high, embraced one-third 

 by the cup. Amurland, N. China, Saghalin. There are 

 two closely allied species from Japan, Q. crispula. 

 Blume, and Q. grosseserrata, Blume, which are almost 

 indistinguishable in foliage from each other and from 

 this species, but Q. crispula has the cup somewhat 

 deeper, embracing about one-half of the nut. Both have 

 handsome foliage and have proved hardy in the Arnold 

 Arboretum. Under the name of Q. Mongolica a form of 

 Q. lanuginosa is sometimes found in the trade. 



17. glandulifera, Blume. Tree, to 40 ft., rarely to 

 70 ft., shrubby in cult.: Ivs. cuneate or rounded at the 

 base, oblong-obovate to oblanceolate, acute, with 6-10 

 glandular-tipped, acute teeth on each side, light green 

 above, glabrous, whitish or grayish green beneath, ap- 

 pressed silky at first, almost half -evergreen, 2/^-5 in. 

 long: fr. peduncled, usually several; acorn ovate, about 

 Yz in. high, embraced one-third to one-half by the cup. 

 Japan. Half evergreen shrub with handsome foliage, 

 almost hardy north, at least in sheltered positions. 

 Sometimes cult, under the name Q. dentata. Q. glandu- 

 lifera, Mast., is Q. Turneri (see suppl. list). 



18. prinoldes, Willd. (Q.CTiincapin, Pursh. Q. Prlnus, 

 var. Chincapin, Michx.). CHINCAPIN OAK. Spreading 

 shrub, with slender stems, usually not over 6 ft. high, 

 rarely to 15 ft. : Ivs. rather short-petioled, cuneate at 

 the base, ovate-oblong or oblong, with 4-8 sometimes 

 obtusish teeth on each side, bright green above, grayish 

 tomentulose beneath, 2%-5 in. long: fr. sessile, acorn 

 oval, about % in. long, embraced one-half by the cup. 

 Maine to Ala., west to Minn, and Tex. S.S. 8:378. Em. 

 1:158. Pretty shrub for covering dry and rocky ridges. 

 In trade sometimes under the misleading name of Q. 

 humilis, for which see supplementary list. 



19. Muhlenbergi, Engelm. (Q. Castanea, Willd., not 

 Ne'e. Q. acuminata, Sarg., not Roxb. Q. Prlmis, var. 

 acuminata, Michx.). YELLOW CHESTNUT OAK. Tree, to 

 100 or occasionally to 160 ft., with rather short branches 

 forming a narrow, round-topped head: Ivs. slender- 

 stalked, oblong to oblong-lanceolate, acute or acuminate, 

 coarsely toothed with acute, glandular-tipped teeth, dark 

 or yellowish green above, whitish tomentulose beneath, 

 4-7 in. long: fr. sessile or short-peduncled ; acorns 

 ovate, M-% in. long, embraced about one-half by the 

 cup. Tenn. to Va., west to Neb. and Tex. S.S. 8:377. 

 Beautiful tree with light gray bark and handsome foli- 

 age, glossy above and silvery white beneath. 



20. Michauxi, Nutt. (Q. Prlnus, var. palustris, 

 Michx.). BASKET OAK. Cow OAK. Tree, to 100 ft., 

 with round-topped, rather dense head; bark light gray, 

 scaly: Ivs. obovate or obovate-oblong, acute, deeply 

 crenulate-toothed, with obtuse, mucronulate teeth, 

 bright green and shining above, grayish tomentulose 

 beneath, 47 in. long: fr. short-peduncled; acorn ovoid, 

 1-1 % in. high, embraced about one-third by the tomen- 

 tose cup. Del. to Fla., west to Ind. and Tex. S.S. 

 8:382, 383.-One of the most beautiful of the Chestnut 

 Oaks ; prefers moist soil. 



21. Prlnus, Linn. (Q. Prlnus, var. monticola, Michx. 

 Q. montana, Willd.). CHESTNUT OAK. ROCK CHEST- 

 NUT OAK. Fig. 2041 (5). Tree, to 70, or occasionally to 

 100 ft., with broad, irregular head and dark brown, 

 ridged bark: Ivs. slender-stalked, obovate to oblong- 

 lanceolate, coarsely crenulate-toothed, bright or yellow- 

 ish green above, paler beneath, tomentulose when young, 

 often almost glabrous at length, 5-8 in. long: fr. soli- 

 tary or in pairs, on peduncles about 1 in. long; acorn 

 ovoid, 1-1% in. high, embraced about one-third by the 

 cup. Maine and Ontario to Ala. S.S. 8:375,376. Em. 

 1:155 (as Q. Castanea) and 156. G.C. III. 14:617. G.F. 

 1:510. Handsome Oak, growing well in rather dry soil. 



22. bf color, Willd. (Q. platanoldes, Sudw. Q. Prlnus, 

 var. tomentdsa, Michx. Q. Prlmis, var. discolor, Michx. 

 f.). SWAMP WHITE OAK. Fig. 2041 (7). Tree, to 70 

 ft., rarely to 100 ft., with narrow, round-topped, open 

 head and light grayish brown, scaly bark: Ivs. obovate 

 to oblong-obovate, sinuately dentate, sometimes lobed 

 half-way to the middle, dark green and dull above, 

 whitish tomentulose beneath, 4-7 in. long: fr. solitary 

 or in pairs on peduncles l%-4 in. long; acorn ovate- 



