846 



JUGLANS 



1196. Juglans Sieboldiana (Xl-5). 



or acuminate, almost glabrous, bright green, 2-5 in. long : 

 fr. almost globular, green; nut usually oval, reticulate 

 and rather smooth, rather thin-shelled. S.E.Europe, 

 Himal., China. U. S. N. C., pi. 6. Many vars. are culti- 

 vated as fruit trees, for which see Walnut. Of the orna- 

 mental vars. the most distinct and decorative is var. 

 laciniata, Loud. (var. filicifblia, Hort., var. asplenifolia, 

 Hort.), with narrow, pinnately cut Ifts.; very effective 

 as a single specimen on the lawn ; remains usually 

 shrubby. Var. monophylla, Hort., has the Ivs. simple or 

 3-foliolate. Var. p6ndula,Hort. , has pendulous branches. 

 Var. praeparturiens, Hort., is a shrubby var., producing 

 rather small, thin-shelled nuts on very young plants. 

 Var. Bartheriana, Hort. (var. elongata, Hort.). Nut 

 elongated, narrow-oblong. R.H. 1859, p. 147; 1861, p. 427. 

 On. 50:478. 



1197. Juglans Sieboldiana fruits. 

 With and without the husk. Natural size. 



JUGLANS 



BB. Lfts. 13-25, serrate. 



Calif6rnica, Wats. Round-headed tree, occasionally 1 

 60 ft., with puberulous branchlets: Ifts. ovate-oblong i 

 oblong-lanceolate, acute or acuminate, almost glabrou 

 or puberulous when young, 2-4 in. long: stamens 30-4( 

 ovary almost glabrous or puberulous : fr. globose, %-l] < 

 in. across ; nut obscurely sulcate, rather thin-shelle( 

 Calif. S. S. 7:337. Gn. 49, p. 278. -A graceful, orm 

 mental tree, also used as stock for grafting in Call] 

 The nut is of good quality but rather small. 



rupestris, Engelm. Shrub or small tree, rarely to 5 

 ft.: branchlets pubescent when young: Ifts. ovate-lar 

 ceolate to lanceolate, acuminate, puberulous or pul 

 cent when young, 2-5 in. long: stamens about 20: ovj 

 pubescent or tomentose : fr. globular, rarely ovc 

 often pointed, usually pubescent, K-1% in. across; 

 deeply sulcate, with longitudinal grooves, thick-shell 

 with small kernel. Colo, to Tex. and northern 

 S.S. 7:335. The typical form has narrower, more gla 

 brous Ivs. and .smaller frs., while 

 var. major, Torr. , the western form, 

 is ot more vigorous gi'owth, has 

 broader, more coarsely serrate and 

 more pubescent Ivs. and larger, 

 less thick-walled nuts. S.S. 7:336. 

 Probably J. longirostris, Carr. (R. 

 H. 1878, p. 53), belongs here. 



nigra, Linn. BLACK WALNUT. 

 Fig. 1193. Lofty tree, to 150 ft., 

 with rough brown bark and pu- 

 bescent branchlets : Ifts. oblong- 

 lanceolate, acuminate, appressed- 

 serrate, glabrous and somewhat 

 shining above at length, pubescent 

 beneath, 3-5 in. long : fr. usually 

 1-3 on a short stalk, 1^-3 in. 

 across, with papillose surface; nut 

 thick-shelled, globular or some- 

 what depressed, deeply furrowed. 

 Mass, to Fla., west to Minn, and 

 Tex. S. S. 7:333-334. Em. 211. 

 G.C. II. 11:373; 26:617. U.S.N.C. 

 7, pp. 1-3. Gn. 27, pp. 269, 270. 



AA. Fr. coated with viscid hairs : 

 nut 2-celled at the base: Ifts- 

 ivith stellate and glandular Ijjlj'l 



pubescence beneath, serrate. II I"' 



cin^rea, Linn. BUTTERNUT. Cw/ll 

 WHITE WALNUT. Fig. 1194. Large 

 tree, occasionally to 100 ft., with 

 gray bark : Ifts. 11-19, oblong- 

 lanceolate, acuminate, appressed- 

 serrate, usually pubescent on both 

 sides, more densely below, 3-5 in. 

 louff: fr. in short racemes, 2-5, ob- 

 long, pointed, 3-5 in. long; nut ob- 

 long, with 4 more and 4 less promi- 

 inent irregular ribs and many 

 broken sharp ridges between. New 

 Brunswick to Ga. , west to Dak. and 

 Ark. 8. S. 7:331-332. Em. 207. H 98 . Winter twig of 

 U.S.N.C. 7, p. 4. Juglans Sieboldiana. 



Mandshurica, Maxim. Fig. 1195. Natural size. 



Broad-headed tree, to 60 ft.: Ifts. 



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

 rous above, pubescent beneath, rarely almost glabrous 

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

 ovate to oblong; nut similar to that of the former, but 

 less sharply ridged. Mandsburia, Amurland. G.C. 111. 

 4:384. R.H. 1861, p. 429 fas J. regia octogona). Gn. 5( 

 p. 478 (by error as J. regia cordata). U.S.N.C. 7, p. 5. 



Sieboldiana, Maxim. (J. ailantifolia, Carr.). Figs. 

 1196-8. Broad-headed tree, to 50 ft. : Ifts. 11-17, oval tc 

 oval-oblong, short-acuminate, densely serrate, glabrous 

 above, pubescent beneath, 3-6 in. long: frs. in long ra- 

 cemes, sometimes twenty, globose to ovate-oblong; 

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

 and pointed apex, the surface rather smooth, slightly 

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

 Japan. Gn. 47, p. 442. A.G. 11:701; 12:179. R.H. 1878, 

 pp. 414-415. U.S.N.C. 7, p. 7. 



