CATALOGUE OF FOREST TREES. 49 



Wood heavy, hard, strong, tough, close-grained, compact, susceptible of a good polish; medullary rays 

 numerous, thin; color, light brown tinged with red, the sap-wood lighter; specific gravity, 0.6912; ash, 0.54; 

 largely used in the manufacture of furniture, shoe lasts and pegs, saddle-trees, in turnery, for interior finish, and 

 flooring; in ship-building for keels, keelsons, shoes, etc., and furnishing valuable fuel; "curled" maple and 

 "bird's-eye" maple, accidental forms in which the grain is beautifully curled and contorted, are common and 

 highly prized in cabinet-making. 



Maple sugar is principally made from this species; the ashes of the wood, rich in alkali, yield large quantities 

 of potash. 



Var. nigrum, Torrey & Gray, 



Fl. N. America, i, 248. Torrey, Fl. N. York, i, 136. Loudon, Arboretum, i, 411. Browne, Trees of America, 84. Gray, Manual N. 

 States, 5 ed. 119. Vasey, Cat. Forest Trees, 10. Bell in Geological Rep. Canada, 1879-'80, 54 C . 



A. saccharinum, Michaux, Fl. Bor.-Am. ii, 252 [not Wangenheim]. 



A. nigrum, Michaux f. Hist. Arb. Am. ii, 238, t. 16; N. American Sylva, 3 od. i, 163, t. 43. Pursh, Fl. Am. Sept. i,266. 

 Poiret, Suppl. v, 669. Nuttall, Genera, i, 253. Elliott, Sk. i, 450. Do Candolle, Prodr. i, 595. Torrey, Fl. U. S. 397 ; 

 Compend. Fl. N. States, 170. Sprengel, Syst. ii, 225. Don, Miller's Diet, i, 650. Beck, Bot. 63. Eaton, Manual, 6 

 ed. 2. Spach, Hist. Veg. iii, 104 ; Ann. Sci. Nat. 2 ser. ii, 170. Dietrich, Syn. ii, 1282. Eaton & Wright, Bot. 112. 

 Koch, Dendrologie, i, 532. Gray in Am. Nat. vi, 767; vii, 422. Wood, Cl. Book, 286; Bot. & Fl. 74. 



BLACK SUGAR MAPLE. 



Westm Vermont, shores of lake Champlain, westward to southern Missouri, south through Tennessee to 

 northern Alabama, the valley of the Chickasaw river, Mississippi (Mohr), and southwestern Arkansas (Fulton, 

 Letterman). 



, A large tree along streams and river bottoms, in lower ground than the species with which it is connected by 

 numerous intermediate forms. 



Wood heavier than that of the species ; specific gravity, 0.6915 ; ash, 0.71. 



65. Acer dasycarpum, Ehrhart, 



Beitr. iv, 24. Mcouch, Moth. 56. Persoon, Syii. i, 417. Willdenow, Spec, iv, 985; Enum. ii, 1044. Alton, Hort. Kew. 2 ed. v, 446. 

 Pursh, Fl. Am. Sept. i, 266. Nuttall, Genera, i, 252; Sylva, ii, 87; 2 ed. ii, 35. Hayne, Dend. Fl. 213. Elliott, Sk. i, 449. 

 Torrey, Fl. U. S. 396; Compend. Fl. N. States, 109; Fl. N. York, i, 136, t. 18; Nicollet's Rep. 147. Sprengel, Syst. ii, 225. 

 Tausch, Regensb. Fl. xii 2 , 553. Eaton, Manual, 6 ed. 2. Loudon, Arboretum, i, 423, fig. 129 & t. Hooker, Fl. Bor.-Am. i, 113; 

 Jour. Bot. i, 200. Bigelow, Fl. Boston. 3 ed. 407. Torrey & Gray, Fl. N. America, i, 248. Eaton & Wright, Bot. 112. Emerson, 

 Trees Massachusetts, 487; 2 ed. ii, 556 & t. Parry in Owen's Rep. 610. Darlington, Fl. Cestrica, 3 ed. 46. Richardson, 

 Arctic Exped. 423. Darby, Bot. S. States, 265. Cooper in Smithsonian Rep. 1858, 251. Chapman, Fl. S. States, 81. Curtis in 

 Rep. Geological Surv. N. Carolina, 1860, iii, 51. Lesquereux in Owen's 2d Rep. Arkansas, 354. Wood, Cl. Book, 286; Bot. & Fl. 

 74. Engelmann in Trans. Am. Phil. Soc. new ser. xii. 187. Buchcnau in Bot. Zeit. xix, 285, t. 11. Gray, Manual N. States, 

 5 ed. 119. Vasey, Cat. Forest Trees, 10. Coulter's Bot. Gazette, v, 88. Koch, Dendrologie, i, 541. Sears in Bull. Essex Inst. 

 xiii, 3. Bell in Geological Rep. Canada, 1879-'0, 53=. Nicholson in London Gard. Chronicle, 1881, 136, f. 24. Ridgway in Proc. 

 U. S. Nat. Mus. 1882, 62. 



A. saccliarinum, Linnaeus, Spec. 1 ed. 1055. 



A. rubrum, var. pallidum, Aiton, Hort. Kew. iii, 434. 



A. eriocarpum, Micbaux, Fl. Bor.-Am. ii,253. Dosfontaines in Ann. Mus. vii, 412, t. 25, f. 1 ; Hist. Arb. i, 392. Poiret, Suppl. 

 it, 573. Trattinick, Archiv. i, t. 8. Michaux f. Hist. Arb. Am. ii, 205, t. 13 ; N. American Sylva, 3 ed. i, 146, t. 40. 

 Nouveau Duhamel, iv, 30. Do Candollo, Prodr. i, 595. Don, Miller's Diet, i, 650. Penn. Cycl. i, 79. Beck, Bot. 63. 

 Spach, Hist. Veg. iii, 116; Ann. Sci. Nat. 2 ser. ii, 177. Darlington, Fl. Costrica, 2 ed. 245. Dietrich, Syn. ii, 

 1282. Browne, Trees of America, 95. Moohan in Proc. Philadelphia Acad. 1868, 140. 



SOFT MAPLE. WHITE MAPLE. SILVER MAPLE. 



Valley of the Saint John's river, New Brunswick, to Ontario, south of latitude 45, south to western Florida; 

 west to eastern Dakota, eastern Nebraska, the valley of the Blue river, Kansas, and the Indian territory. 



A large tree, 18 to 30 or, exceptionally, 36 meters in height, with a trunk 1.20 to 1.80 meter in diameter; along 

 streams and intervales, in rich soil ; most common west of the Alleghany mountains, and reaching its greatest 

 development in the basin of the lower Ohio river. 



Wood light, hard, strong, brittle, close-grained, compact, easily worked; medullary rays numerous, thin ; 

 specific gravity, 0.5269 ; ash, 0.33 ; somewhat used in the manufacture of cheap furniture, for flooring, etc. ; maple 



sugar is occasionally made from this species. 

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