CATALOGUE OF FOREST TREES. 175 



^. angulata, Alton, Hort. Kew. iU, 406; 2 ed. v, 396. - -Nouveau Duhamel, ii, 186. Desfontaiues, Hist. Arb. ii, 466. 

 Willdenow, Spec, iv, 805; Enum. 1017 ; Berl. Baiimz. 294. Michaux f. Hist. Arb. Ain.iii,302, 1. 12; N. American Sylva, 

 3 ed. ii, 161, t. 94. Pnrsh, Fl. Ann.Sept. ii, 619. Eaton, Manual, 117; 6 ed. 277. Nuttall, Genera, ii,239. Jam<Js in 

 Long's Exped. ii, 164. Torrey in Ann. Lye. N. York, ii, 249. Elliott, Sk. ii, 711. Sprengel, Syst. ii, 244. Loudon, 

 Arboretum, iii, 1670, 1533 & t. Eaton & Wright, Bot. 370. Spach in Ann. Sci. Nat. 2 ser. xv, 321; Hist. Veg. x,391. 

 Seringe in Fl. dos Jard. ii, 64. Scheele in Roemer, Texas, 446. Darby, Bot. S. States, 507. Cooper in Smithsonian Eep. 

 1858,257. Chapman, Fl.S.States,431.Le8quereux in Owen's 2d Eep. Arkansas, 389. Wood, CI. Book, 655; Bot. &, 

 Fl. 311. Gray, Manual N. States, 5 ed. 467. Wesmajl in De Candolle, Prodr. xvi", 328. Koch, Dendrologie, ii, 494. 

 Young, Bot. Texas, 514. Porter & Coulter, Fl. Colorado; Hayden's Surv. Misc. Pub. No. 4, 129. Vasey, Cat. Forest- 

 - Trees, 29. Sears in Bull. Essex Inst, xiii, 182. 



P. Icevigata, Aitou,Hort. Kew. iii,406; 2 ed. v, 395. Willdenow, Spec, iv, 803. Pursh, Fl. Am. Sept. ii,619. Poiret, Suppl. 

 iv, 378. Nuttall, Genera, ii,239; Sylva, i, 54; 2 ed. i, 70. Sprengel, Syst. ii, 244. Beck, Bot. 323. Eaton, Manual, 6. 

 ed. 278. Loddiges, Cat. ed. 1836. Eaton <fe Wright, Bot. 370. Emerson, Trees Massachusetts, 246 ; 2 ed. 1, 283. 



. P. glandulosa, Mcench, Meth. 339. 

 P. angulosa, Michaux, Fl. Bor.-Am. ii,243. 



P. Canadensis, Michauxf. Hist. Arb. Am.iii,302, 1. 12; N.American Sylva, 3 ed. ii, 164, t. 95. Spach in Ann. Sci. Nat. 2 ser.. 

 XV, 32 ; Hist. Veg. x, 390. Seringe in Fl. des Jard. u, 65. Fescali, Forst. Pfl. 122, t. 8, f. 10-14. Wood, Bot. & Fl. 311. 

 Wesmsel in De Candolle, Prodr. xvi^, 329. Koch, Dendrologie, ii, 491. 



P. Virginiana, Du Mont, Cours. Bot. Cult, vi, 400. 



p. Marylandica, Bosc in Nouv. Diet, xi, 409. Poiret, Suppl. iv, 378. Sprengel, Syst. ii, 244. 



P. macrophylla, Loddiges, Cat. ed. 1836. 



P. Lindleyana, P. neglecta, and P. Uevigata, Hort. 



COTTONWOOD. NECICLACE POPLAR. CAROLINA POPLAR. BIG COTTONWOOD. 



Shores of lake Champlaiu, Vermont, south through western New England to the Chattahoochee region tf' 

 western Florida, west along the northern shores of lake Ontario to the eastern base of the ranges of the Rocky 

 mountains of Montana, Colorado, and New Mexico. 



A large tree, 24 to 51 meters in height, with a trunk 1.20 to 2.40 meters in diameter ; low, moist soil ; the common^ 

 Cottonwood of Texas and the western plains, bordei-iug all streams flowing east from the Eocky mountains. 



Wood very light, soft, not strong, close-grained, compact, liable to warp in drying, difficult to season ; medullary 

 rays numerous, obscure; color, dark brown, the thick sap-wood nearly white; specific gravity, 0.3889; ash, 0.96^, 

 largely used in the manufacture of paper-pulp, for light packing-cases, fence boards, and fuel. 



325. Populus Fremontii, Watson, 



Proc. Am. Acad, x, 350 ; Am. Jour. Sci. 3 ser. xv, 136 ; Bot. California, ii, 92. 



P. monilifera, Newberry in Pacific R. E. Kep. vi, 327 [not Alton].- Watson in King's Eep. v, 327; PI. Wheeler, 17. Torrey,, 

 Bot. Wilkes Exped. 469. 



COTTONWOOD. 



California, valley of the upper Sacramento river, south to San Bernardino county (Colton, Parry), and eastward 

 in Nevada and Utah. 



A large tree, -24 to 30 meters in height, with a trunk 1.20 to 1.80 meter in diameter; borders of streams; the 

 common cottonwood of the valleys of central California. 



Wood light, soft, not strong, close-grained, compact, liable to warp in drying, difficult to season ; medullary 

 rays thin, very obscure; color, light brown, the sap-wood nearly white; specific gravity, 0.4914; ash, 0.77. 



Var. Wislizeni, Watson, 



Am. Jour. Sci. 3 ser. xv, 137 ; Bot. California, ii, 92 ; Proc. Am. Acad, xviii, 157. Eusby in Bull. Torrey Bot. Club, ix, 79. 



P. monilifera, Torrey in Sitgreaves' Eep. 172; Bot. Mex. Boundary Survey, 204; Ives' Rep. 27 [not Alton].- Bigelow in 

 Pacific E.R. Eep. iv, 21. 



COTTONWOOD, WHITE COTTONWOOD. 



San Diego county, California, through Arizona and New Mexico to western Texas and southern Colorado. 



A large tree, 24 to .30 meters in height, with a trunk 1.20 to 1.80 meter in diameter; borders of streams; the- 

 prevalent cottonwood of the arid southwestern region, there largely planted as a shade tree and for fuel. 



Wood light, soft, not strong, compact; specific gravity, 0.4621; ash, 1.13; furnishing the ordinary domestic 

 fuel of the region. 



