JUGLANDACE-^. 



SILVA OF NORTH AMERICA. 



121 



JUGLANS NIGRA. 



Black Walnut. 



Leaflets 15 to 23, ovate-lanceolate. Fruit 



ally globose, solitary or in pairs 



nut globose, deeply and longitudinally ridged, 4-celled at the base. 



jlans nigra 



ed. 8, No. 2. 



Miller 



179. 



Darlington, Fl. Cestr. ed. 3, 262. — Dietrich, Syn. 



Harbk 



Wang 



heim, Beschreib. Nordam. Holz. 60 ; Nordam. Holz. 20, 



t. 8, f . 20. — Jacquin, Icon. Rar. i. 19, t. 191. — Moench, 



Baume Weiss. 83 ; Meth. 696. — Walter, FL Car. 235. 



Willdenow, BerL Baumz. 155 ; Spec. iv. 456 ; Enum. 



V. 312. — Curtis, Rep. Geolog. Sitrv. N. Car. 1860, iii. 

 45. — Chapman, Fl. 419. — C de Candolle, Ann. Sci. 

 Nat. s^r. 4, xviii. 35, t. 4, f . 44, 46 ; Prodr. xvi. pt. ii. 



137. — Koch, Dendr, i. 587. 



Mass 



211. 



Schnizlein, Icon. t. 244, f. 1, 8, 12, 13. — Lauche, 



978. 

 6. 



Poiret, Lam. Diet. iv. 502 ; III. iii. 365, t. 781, f. 

 Abbot, Insects of Georgia^ ii. t. 88. — Castiglioni, 

 Viag. negli Stati Uniti, ii. 263. — Schmidt, Oestr. Baumz. 

 iii. 37, t. 160. — Borkhausen, Handh. Forsthot. \. 751. 

 Muehlenberg & Willdenow, Nexce Schrift. Gesell. nat. Fr. 



Deutsche Dendr. 305. — Sargent, Forest Trees N. Am. 

 V)th Census U. S. ix. 131. — Watson & Coulter, Gray's 

 Man. ed. 6, 467. — Dippel, Handh. Laubholzk, ii. 319- 

 Koehne, Deutsche Dendr, 74, f. 24 A. — Coulter, Con- 

 trib. U. S. Nat. Herb. ii. 412 {Man. PI W. Texas). 



Berlin^ iii. 388. — Michaux, Fl. Bor.-Am. ii. 191. — Per- Juglans nigra oblonga, Marshall, Arbust. Am. 67 (1785) 



soon, Syn. ii. 566. — Desfontaines, Hist. Arb. ii. 347. 



Mont 



Stokes, 



Juglans Pitteursii, Morren, Ann. Soc. Roy. Agric. et Bot 

 Gand, iv. 179, t. 197 (1848). 



Bot. Mat. Med. iv. 403. — Nouveau Duhamel^ iv. 179, t. Wallia nigra, Alefeld, Bonplandia, ix. 336 (1861). 



48. 



Michaux f . Hist 



Pursh, Fl. Wallia fraxinifolia, Alefeld, Bonplandia^ ix. 336 (excl. 

 Am. Sept. ii. 636. — Nuttall, Gen. ii. 220 ; Sijlva, 141. — hab. Antilles) (1861). 



Hayne, Dendr. Fl. 163. — Elliott, Sk. ii. 622. — Sprengel, Wallia nigra microcarpa, Alefeld, Bonplandia^ ix. 336 



Syst. iii. 865. — Watson, Dendr. Brit. ii. 158, t. 158. 

 Audubon, Birds, t. 84, 156- — Spach, Hist. Veg. ii. 168. 

 Rafinesque, Alsograph. Am. 66. — Torrey, Fl. N. Y. ii 



(1861). 

 Wallia nigra macrocarpa, Alefeld, Bonplandia^ ix. 336 

 (1861). 



A tree, frequently one hundred feet, and occasionally one hundred and fifty feet high, with a 

 straight trunk often clear of branches for fifty or sixty feet, and four to six feet in diameter, and stout 

 limbs which spread gradually, and form a comparatively narrow shapely round-topped head of mostly 

 upright rigid branches. The bark of the trunk is two or three inches thick, dark brown slightly tinged 

 with red, and deeply divided into broad rounded ridges broken on the surface into thick appressed 

 scales ; that of young stems and of the branches is light brown, and separates in thin papery scales, 

 which, as they fall, display the dark gray inner bark. The branchlets, when they first appear, are 

 covered, like the petioles, with pale or ferrugineous matted pubescence, which gradually wears off 

 during the summer or autumn, and in their first winter are dull orange-brown, pilose with short soft 

 hairs, or puberulous, marked with raised conspicuous orange-colored lenticels, and with elevated pale 

 leaf-scars ; in their second and third years they gradually grow darker, and become light brown. The 

 terminal buds are ovate, slightly flattened, obliquely rounded at the apex, coated with pale silky 

 tomentum, one third of an inch long, and one quarter of an inch broad, and usually covered with four 

 scales ; those of the outer pair are rounded on the back, thickened, concave, and often obscurely pinnate 

 or pinnately marked at the apex, and little, if at all, accrescent ; those of the inner pair are pinnate 

 at the apex, covered on the outer surface with rusty brown tomentum, and an inch long at maturity, 

 and often resemble the scale-like short-lived upper leaves, which are composed of short broad flat 

 petioles and of three or four pairs of leaflets. The axillary buds are obtuse, an eighth of an inch 

 lono", and coated with pale tomentum, their outer scales being open at the apex during the winter. The 



leaves are from one to two feet long, and are composed of pubescent petioles, and of from fifteen to 



