JUGLANS 



JUGLANS 



1723 



gray bark: young branchlets villous and glandular: 

 Ifts. 11-19, oblong-lanceolate, acuminate, appressed- 

 Borrate, usually pubescent on both sides, more densely 

 below 3-5 in. long: fr. in short racemes, 2-5, oblong, 

 pointed, 3-5 in. long: nut oblong, with 4 more and 4 

 less prominent irregular ribs and many broken sharp 

 ridges between. New Bruns. to Ga., west to Dak. and 

 Ark. S.S. 7:331, 332. Em. 207. U. S. N. C. 7, p. 4. 

 Gn. 22, p. 251. 



8. cathayensis, Dode (J. draconis, Dode). Tree, to 

 70 ft.: branchlets glandular-hairy: Ivs. up to 3 ft. long; 

 Ifts. 9-17, obovate-oblong, acuminate, obliquely 



2014. Juglans Sieboldiana. ( X M) 



rounded or subcordate at the base, serrulate, sparingly 

 hairj' above, more densely below, midrib glandular, 

 3-9 in. long: fr. 6-10 in pendulous racemes, ovate, 

 pointed, ly^-l^ in. long; nuts ovoid, pointed, 6-8- 

 angled, with sharp and broken, nearly spiny ridges. 

 Cent, and W. China. G.C. III. 50:189.— Has proved 

 hardy at the Arnold Arboretum. 



9. mandshfirica, Maxim. Fig. 2013. Broad-headed 

 tree, to 60 ft.: branchlets glabrescent: Ifts. 11-19, 

 oblong, acute, obtusely serrate, at length almost gla- 

 brous above, pubescent beneath, rarely almost gla- 

 brous at length, 3-8 in. long: fr. in short racemes, 

 globular-ovate to oblong; nut with 8 prominent 

 obtusish ridges. Mandshuria, Amurland. G.C. III. 

 4:384; 30:302. A.G. 1891 :178. R.H. 1861, p. 429 

 (as J. reffia oclogona). Gn. 50, p. 478 (by error as J. 

 regia cordata). U.S.N.C. 7, p. 5. 



BB. Nut rugose or nearly smooth. 



10. Sieboldiana, Maxim. (J.ailantijblia, Carr.). Figs. 

 2014-2016. Broad-headed tree, to 50 ft.: branchlets 

 pubescent: Ifts. 11-17, oval to oval-oblong, short- 

 acuminate, densely serrate, glabrous above, pubescent 

 and usually glandular beneath, 3-6 in. long: frs. in 

 long racemes, sometimes 20, globose to ovate-oblong; 

 nut more or less globose, with thick, wing-like sutures 

 and pointed apex, the surface rather smooth, shghtly 

 rugose and pitted, 1-1 J2 in- long, rather thick-shelled. 



Japan. Gn. 47, p. 442. A.G. 1890:701; 1891:179. 

 R.H. 1878, pp. 414, 415. U.S.N.C. 7, p. 7. S.I.F. 

 2:5. Var. cordifonnis, Makino (7. cordt/dndt's, Maxim.). 

 Fig. 2017. Nut heart-shaped or ovoid, much flattened, 

 sharply 2-edged, smooth and with a shallow longitu- 

 dinal groove in the middle of the flat sides, 

 rather thin-sheUed. G.C. III. 30:292. 

 S.I.F. 1:17. U.S.N.C. 7, p. 6.— Though 

 this form is very different in its fr. from 

 the true J . Sieboldiana there are no other 

 reUable characters to distinguish it, and 

 seedUngs raised from nuts of var. cordi- 

 fonnis have always produced, at least to 

 a large percentage, trees bearing nuts 

 like those of J. Sieboldiana or of interme- 

 diate character. Probably J. LardUii, 

 Dode (L.I. 1, 2), is such an intermediate 

 form. /. coardata, Dode, is another of 

 these intermediate forms with a somewhat 

 longer nut slightly constricted about the 

 middle. J. subcordiformis, Dode, is hardly 

 different from the variety except in its 

 shorter and broader nuts. J. Allardiana, 

 Dode, is probably only a form of the 

 species; it differs little from it except in 

 the gray or blackish duU color of the nut, 

 which is yellowish and lustrous in typical 

 J. Sieboldiana. 



11. intermedia, Carr. (J. n'lgraxJ. regia). Inter- 

 mediate between the parents, but in general appear- 

 ance more like J. regia. Lfts. usually 11, ovate or 

 elliptic - ovate, remotely denticulate, glabrous dark 

 green. In regard to the fr. 2 forms have been dis- 

 tinguished. Var. pyriformis, Carr., with an obovoid 

 fr. more resembling that of /. regia. R.H. 1863, p. 30. 

 Gn. 50, p. 478. Var. Vilmoreana, Carr. (J. Vilmorini- 

 cma, Vihn.). Fig. 2018, with a fr. more like that of /. 

 nigra. G.F. 4:52, 53 (adapted in Fig. 2018). M.D. 

 1911 : 197. — Probably also J. regia gibbosa, Carr., with a 

 large, thick-shelled deeply rugose nut belongs here. 

 R.H. 1861, p. 428. Gn. 50, p. 478. Of the same parent- 

 age is without doubt the so-called James River hybrid 

 (Forest Leaves 2:133, 134). 



12. quadrangulata, Rehd. (J. alata, ^Schelle. J. 

 intermedia quadrangulata, Carr. J. intermedia alata, 

 Carr. J. cinereaxJ.regia). Fig. 2019. Tall tree, in its 

 bark, winter-buds and f6liage much resembling J. 

 regia: lfts. usually 9, oval to oblong, obscurely and 

 remotely serrate, slightly pubescent beneath: fr. spar- 

 ingly produced, subglobose, about 2 in. long; nut ovoid- 

 oblong, acute at the apex, l^^ in. long, with deeply 

 sculptured walls thinner than those of the butternut 



2016. Juglans Sieboldiana fruits, with and without the husk. 



(About natural size) 



