16 ACER 



long, upright racemes, with petals. Japan.— Hand 

 round-headed tree, with slender, spreading branches and 

 graceful bright green foliage, turning orange-yellow and 

 scarlet in autumn ; hardy. 



Negiindo, Linn. {Negundo fraxinifiUion, 'i^utt. N. 

 aceroides, Monch. ). Ash-leaved Maple. Box Elder. 

 Large tree, 70 ft.: Its. 

 pinnate ; leaflets 3-.5, 

 ovate or oblong-lanceo- 

 late, coarsely serrate or 

 3-lobed, mostly gla- 

 brous, 2-5 in. long: fls. 

 before the Ivs. ; stami- 

 nate fls. in pendulous 

 corymbs, pistillate fls. 

 in pendulous racemes. 

 E. N. Amer. S. S. 2: 

 96. Miehx. Hist. Arb. 



:j-.5-lobed, pnbeseent when 

 Probably hybrid, A.. Mon^ 

 fornicum. Dietr.-A. X..triiii> 



Jiiiscii. Spach. 

 i.-um.-.l. Cali- 



•n^llipes. Max. 



2:18.— Large, rapid-growing tree of spreading habit, 

 thriving best in moist and rich soil. Much prized in the 

 W., where it withstands cold and drj-ness. Largely used 

 for shelter belts and for planting timber-claims. See 

 picture, under Box Elder. Var. Califdmicmn, Sarg. (A. 

 Califdminim, Dietr. Ifegtindo Califdrnicnm, Torr. & 

 Gray). Branches pubescent when young: leaflets 3, 

 densely pubescent beneath. W. N. Amer. S.S. 2:97. 

 Nutt. N. Am. Sylv. 2:72. Var. viol4cetim, Arb. Muse. 

 [A. Califdrnieum, Hort.). A vigorously growing form; 

 branches purplish with glaucous bloom or finely pubes- 

 cent when young. Var. arg^nteo-varieg^tum, Hort. Lvs. 

 with broad white margin. Probably the most effective 

 of all variegated hardy trees. F.S. 17:1781. Var. aiireo- 

 maculitum, Hort. Lvs. spotted with yellow. Var. atireo- 

 margin^tum, Hort. Lvs. with yellow margin. Var. 

 auritum, Spiith. Lvs. yellow. Var. crispum, G. Don. 

 Leaflets i-urk-d. These horticultural varieties may be 

 grafted on common Box Elder seedlings. Box Elder 

 also grows from hardwood cuttings, like the grape. 



A. acuminatum, Wall. (A. caudatum, Wall. A. l»vigatum. 

 Hort., not Wall.). Tree: lvs. 5-lobed. deeply douWv serrate. 

 Himalayas. O.C.Il. 15:3&i.— A. argutum. 'M^x ''•iinl! frro- 

 lvs. small. 5-7-lobed, doubly serrate, nearly L,-],.l.rni:~ .1 ,]■ > 

 G.C. H. 15: 725. Hardy and graceful specie-i- 1 l 

 Tratt.=A. campestre, var. Austriaciim.-,-.!./^';/ ' "^1 



-A. barUnirve.'Ma^. Ailieito A- ^r.;\aiuu \.\- 



■Ithsinn. M.ax. ^Ulicll to' A. Penusylv 

 ng, glabrous beneath ; lobes short : 

 ;.C. II. 15; 75.— A. trlfidum. Hook. & . 



si ■ . ' .,-, Max.J. Allied to .\ ■ : - . i ti.-e: 



^! Maiichtiria, J.-ipan. <r' I : i,: i Van 



I < /,( .\l:i~t A. iusigne. var. Van A ":\' 'I l ''urinmii. 



Trautvetteri.— 1. 'villds'um. Wall. Tall trt4: lvs. s'lobed.' cor- 

 date. 6-8 in. across, toraentose below, coarsely serrate. Hima- 

 l.-iyas. — A. ■rirf;midrtw»t.MLLl.=A.dasycarpum. — A. Zoeschense^ 

 Pax.=A. neglectum, Lange. Alfred Rehdeb . 



