130 FOREST TREES OF NORTH AMERICA. 



237. Platanus Wrightii, Watson, 



Proc. Am. Acad. x, 349. Vasey, Cat. Forest Trees, 23. Eusby in Bull. Torrey Bot. Club, ix, 54. 

 P. Mexicana, Torrey in Emory's Rep. 151 [not Moricand]. 

 P. racemosa, Watson, PI. Wheeler, 16 [not Nuttall]. Rothrock in Wheeler's Rep. vi, 239. 



SYCAMOKE. 



Valleys of southwestern New Mexico to the valley of the San Pedro river, Arizona ; southward into 

 Mexico. 



A tree sometimes 15 to 18 meters in height, with a trunk 0.45 to 0.60 meter in diameter ; banks of streams and 

 high mountain canons. 



Wood light, soft, weak, very close-grained, compact ; layers of annual growth clearly marked by several rows 

 of open ducts ; medullary rays numerous, thin, very conspicuous ; color, light brown tinged with red, the sap-wood 

 lighter; specific gravity, 0.4736; ash, 1.35. 



JUGLANDACE^. 



238. Juglans cinerea, 



Spec. 2 ed. 1415. Jacquin, Icon. Ear. i, t. 193. Wangenheim, Amer. 21, t. 9, f. 21. Walter, Fl. Caroliniana, 235. Aiton, Hort. Kew. 

 iii, 361 ; 2 ed. v, 296. Lamarck, Diet, iv, 503 ; 111. iii, 365, t. 781, f. 7. B. S. Barton, Coll. i, 22, 31 ; ii, 43. Muhlenberg & 

 Willdenow in Neue Schriften Gesell. Nat. Fr. Berlin, iii, 388. Michaux, Fl.Bor.-Am. ii, 191. Willdenow, Spec, iv, 456; Ennm. 

 978; Bert. Banmz. 193. Persoon, Syn.ii, 556. Desfontaines, Hist.Arb. ii, 347. Pursh, Fl. Am. Sept. ii, 636. Barton, Prodr. Fl. 

 Philadelph. 92. Bigelow, Med. Bot. ii, 115, t. 32 ; Fl. Boston. 3 ed. 378. Eaton, Manual, 108; 6 ed. 192. Nuttall, Genera, ii, 220; 

 Sylva, i, 41 ; 2 ed. i, 37. Hayne, Dend. Fl. 163. Elliott, Sk. ii, 622. Sprengel, Syst. iii, 865. Torrey, Compend. Fl. N. States, 357 ; 

 Fl. N. York, ii, 180. Rafinesque, Med. Bot. ii, 234. Audubon, Birds, t. 142. Beck, Bot. 335. Spach, Hist. Veg. ii, 170. Lindley, 

 Fl. Med. 307. London, Arboretum, iii, 1439, f. 1262. Hooker, Fl. Bor.-Am. ii, 143. Eaton & Wright, Bot. 287. Emerson, Trees 

 Massachusetts, 182 ; 2 ed. i, 207 & t. Griffith, Med. Bot. 589. Carson, Med. Bot. ii, 42, t. 86. Parry in Owen's Rep. 618. Darlington, 

 Fl. Cestrica, 3 ed. 262. Darby, Bot. S. States, 5t8. Cooper in Smithsonian Rep. 1858, 254. Chapman, Fl. S. States, 419. Curtis 

 in Rep. Geological Surv. N. Carolina, 1860, iii, 45. Lesquereux in Owen's 2<1 Rep. Arkansas, 387. Wood, Cl. Book, 640 ; Bot. & Fl. 

 304. C. Do Candolle in Ann. Sci. Nat. 4 ser. xviii, 16, t. 4, f. 45; Prodr. xvi 2 , 137. Porcher, Resources S. Forests, 317. Engelmann 

 in Trans. Am. Phil. Soc. new ser. xii, 209. Gray, Manual N. States, 5 ed. 447. Koch, Dendrologie, i, 589. Hayden in Warren's Rep. 

 Nebraska & Dakota, 2 ed. 121. Vasey, Cat. Forest Trees, 23. Broadhead in Coulter's Bot. Gazette, iii, 60. Bentley & Trimen, 

 Med. PI. iv, 247, t. 247. Beal in Am. Nat. xv, 36, f. 6. Sears in Bull. Essex Inst. xiii, 178. Bell in Geological Rep. Canada, 

 1878-'80, 53". Ridgway in Proc. U. S. Nat. Mas. 1882, 76. 



J. oblonga, Miller, Diet. No. 3. Du Roi, Harbk. i, 332 Mcench, Meth. 696. Retzins, Obs. i, 10. 



J. oblonga alba, Marshall, Arbustum, 67. 



J. cathartica, Michaux f. Hist. Arb. Am. i, 165, t. 2 ; N. American Sylva, 3 ed. i, 109, t. 31. 



Carya cathartica, Barton, Compend. Fl. Philadelph. ii, 178. 



Wallia cinerea, Alefeld in Bonplandia, 1861, 334. 



BUTTERNUT. WHITE WALNUT. 



Southern New Brunswick, valley of the Saint Lawrence river, Ontario and southern Michigan to northern 

 Minnesota (lake Pokegoma, Garrison) and central Iowa, south to Delaware and along the Alleghany mountains to 

 northern Georgia, central Alabama and Mississippi, northern Arkansas, and southeastern Kansas. 



A tree 18 to 24 or, exceptionally, 30 to 35 meters (Ridgway) in height, with a trunk 0.60 to 0.90 meter in diameter; 

 rich woodlands; rare at the south; most common and reaching its greatest development in the Ohio Eiver basin. 



Wood light, soft, not strong, rather coarse-grained, compact, easily worked, satiny, susceptible of a beautiful 

 polish, containing numerous regularly-distributed, large, open ducts; medullary raj^s distant, thin, obscure; color, 

 bright light brown, turning dark with exposure, the sap-wood lighter; specific gravity, 0.4086; ash, 0.51; largely 

 used for interior finish, cabinet work, etc. 



The inner bark, especially that of the root, is employed medicinally as a mild cathartic (Am. Jour. Pharm. 

 1874, 169. U. S. Dispensatory, 14 ed. 526. Nat. Dispensatory, 2 ed. 794), and furnishes a yellow dye. 



