14 



ACER 



ACER 



unfolding. Var. tricolor, Hort. Lvs. dark blood-red, 

 sprinkled with rosy pink when young. The.se two beau- 

 tiful forms u.sually remain shrubby. 



13. platanoldes, Linn. Norway Maple. Fig. 19. 

 Large tree, 100 ft. : Irs. .5-lobed, cordate, 4-7 in. across, 

 glabrous; lobes pointed, remotely serrate: fls. yellowish 

 green : fr. with horizontally sjn-fjuliti^^ wiiii^s. Eu., 

 Caucasus. — Large, handsome in.-, wiili iimml, .spread- 

 ing head, resembling sonirwliat J. sarclm rum . The 

 Its. turn pale yellow in autumn. Many fjardc u forms, 

 some of which are here arranged iu two groups : the 

 first being chiefly remarkable for the manner in which 

 the Ivs. are cut ; the second being chiefly remarkable 

 for their coloring. 



(1) Var. cucuUitum, Nichols. Lvs. irregrilarly and 

 shortly lobed, crimpled, light green. Var. diS86ctum, 

 Jacq. Similarto var. I^iirbi n/i, but with darker foliage 

 and of slower growth. Var. globdsum, Hort. Forming 

 aglobose head. Var. laclmatum, Ait. Lvs. irregularly 

 divided, the divisi*'iis bending downwards : growth 

 upright. Var. Ldrbergi, Van Houtte. Lvs. divided 

 nearly to the base, divisions deeply lobed. 



(2) Var. ilbo-variegitum, Nichols. Lvs. with large 

 white blotches. Var. ailreo-mar^nitum, Pax. Lvs. 

 with yellow margin, somewhat irregularly lobed. Var. 



maples. They are extremely handsome shrubs of dense 

 though graceful habit, and with elegant foliage, beauti- 

 ful especially in spring for its delicate shades of 

 green and red, and again in autumn, when the lvs. as- 

 sume the most striking tints. Some of the more vigor- 

 ous-growing varieties, like atropurpureum, dissectum-f 

 ornatum, and the typical forms, are hardy even in New 

 England, while the most variegated forms are more ten- 

 der. They grow best in partly shaded situations and in 

 well drained, rich soil. There are many varieties, mostly 

 introduced from Japanese gardens, of which the follow- 

 ing are some of the best. They may be divided into 5 

 groups, representing various degrees of dissection of 

 the leaves : 



(1) A. palmitum, var. Thunbergi, Pax. {A. palmA- 

 (h»!, Thuub. ). Lvs. deeply r.-'.i-L.bcd urcleft; lobes ob- 

 long-lanceolate, ooarsel}' and doulily serrate or incised. 

 Var. atropurpureum.Van Huiitte. Fig. L'O, c. Lvs. dark 

 purj.le. <-...irsely duul.Iy serrati'. F. 8. 12:1273. Var. 



Banguineum, Hurt., is l.ii^rhter, un( 

 darker red than var. atropitr/'U 

 Koch. (var. atropnrpiireum riiriiii 

 dark purple, with large carnihie 

 half purple and half carmine. \: 

 Lvs. yellow. Var. versicolor, 

 green, with large white sjiot 



var. nigrum, Hort., 

 IK III. Var. bicolor, 

 iliiiii. Hurt.). Lvs. 

 bloiclies, the lobes 



ar. aiiretmi, Nichols. 



Hi.utte. Lvs. bright 

 F.S. 14:1498. Var. 



17. Common Suear Maple.— Acer saccharum (X 



ReitenbacM, Nichols. Lvs. greenish red when unfold- 

 ing, turuiug dark blood-red in late summer. Var. 

 Schw6dleri, Koch. Lvs. bright red when young, 

 changing to dark green. 

 DDD. Lrs. S-5-lobfd or 3-foUolafe, douhJif serrate: win- 

 ter-buds small, with 2 valvate scales. 



14. glabrum, Torr. (A. Doiiglasi, Hook.). Shrub or 

 small tree, 25 ft., quite glabrous : petioles bright red ; 

 lvs. deeply 3-5-lobed or 3-parted, 1-5 in. across, dark 

 green and shining above, pale or glaucous beneath ; 

 lobes doubly serrate. W. N. .Amer. S.S. 2:89. — Hand- 

 some shrubby maple, with graceful, shining foliage, 

 contrasting well with the reel j)e1inles :in(l branches: fr. 

 often rose-colored. Var. tripartitum, I'ax. (A. tripartl- 

 tum, Nutt. ). Lvs. small, usually 3-foliolate. 



DDDD. Zfi's. 5-11-lobed, lobes serrate: corymbs long, pe- 

 diincled: ivinter-buds with 2 valvate scales. 



15. clrcin&tum, Pursh. Small tree, rarely 40 ft.: peti- 

 oles an<l peduncles glabrous ; lvs. 7-9-lobed, 2-7 in. 

 across, glabrous ; lobes acute, doubly serrate : fls. in 

 drooping corvnilis. with jiurple sepal's. W. N. Amer. 

 S.S. 2 ; 87. -Handsunie. r..und-headed tree or shrub, beau- 

 tiful with its delicate light green foliage, red fls., rose- 

 colored fr., and its orange and scarlet fall coloring. 



16. palmitum, Thunb. (.1. polymdrphum, S. &■ Z.j. 

 Japan iMaplk. Shrub or small tree, 20 ft.: petioles and 

 peduncles glabnms ; lvs. 5-9-lobed or divided, 2—4 in. 

 across, glabrous, lobes oblong, acuminate, doubly ser- 

 rate or incised : corymbs few-flowered, erect, with small 

 purple fls. Japan. S.Z. 1:145, 146. A.F. 12: 11. -This 

 species and A. Japonicum are known as Japanese 



mi. 



rdseo-marginitum, Van Houtte. 

 Lvs. small, deeply cut, with nar- 

 row pink margin. Var. crlspum, 

 Andr^. Fig. 20, e. Lvs. small, with 

 involute margins: of distinctly up- 

 right growth. l.H. 13:43. 



(2) Var. Bept6mlobum, Koch 

 {A. septhnlobiim, Thunb.), Lvs. 

 mostly 7-lobed; lobes broad, ecjual- 

 ly doubly serrate. Var. riibrum, 

 Schwer. Lvs. large, deep red when 

 young, beenniing almost green later. 

 Var. reticulatum, .\ndr^. Fig. 20, 

 a. Lvs. irreenish yellow, with green 

 margin and dark green veins. LH. 

 13:18. Var. tricolor, Hort. Lvs. 

 with red, pink and white spots. 



(3) Var. linearllobum, S. & Z. 

 (var. scolopendrifdlium, Hort.). 

 Lvs. divided nearly to the base ; 

 lobes linear, remotely serrate or 

 nearly entire. Var. atroline&re, 

 Schwer. (var. linearil'ibmn iifni- 

 purpiireuyn, Nichols., var. }niinitii- 



Hort.l. Lvs. d.ark red. 



r. ses3ilii61ium, Maxim. Lvs. deeply cut, with 

 rt i>etioles. G.C. II. 10. Of little decorative 



atropurpiir 



(4) Var. diss^ctum, Koch (A. poli/nu'trphum, var. 

 decomp6situm,S.& Z.). Fig. 20, /■. Lvs. divided tu the 

 base iu 5-9 pinnatitid lobes. S.Z. 1:140. Var. ornatum, 

 Carr.(var.d'iiS('c(Hm n(ropMrpi(cp«»i,Hort. ). Fig.20.d. 

 Lvs. deeply cut, deep red. Var. Frederici-GuiUlmi, 

 Carr. (var. pinnafifidu^n rdseo -pietuni , Lem.). Lvs. 

 finelv cut, green, with white and pink spots. I.H. 

 14:523. R.H. K'<(i7:3!ll. 



(5) V 

 very sh 

 value. 



17. Japdnicum, Thunb. Fig. 20, &. Small tree or shrub ; 

 petioles and peduncles downy when young ; lvs. 7-11- 

 lobed, cordate, 3-6 in. acioss, light green, with silky hairs 

 when unfolding; lobes ovate, doubly serrate: fls. large, 

 purple. Japan. S.Z. 1:144. Var. macrophyllum. Van 

 Houtte. Lvs. large, light green. Var. aiireum, Hort. Lvs. 

 yellow. Var. PArsonsi, Veitch. (var. fiHcifdlium, Hort.}. 

 Lvs. large, <iivided nearly to the base in 9-11 pinnatisect 

 segments. 



CCC. ^Is. in elongated, distinctly peduncled 7-(icemes or 



panicles. 



r>. Lrs. distinctly 5-lobed, large. 



18. macropliy Hum, Pursh. Large-leaved Maple. Tree, 

 100 feet high : lvs. cordate, deeply 3-5-lobed or cleft, pu- 

 bescent when young, pale green beneath, 8-12 in. across , 

 middle lobe mostly 3-lobed: racemes pendulous: fr. with 

 yellow, bristly hairs, largely winged. W. N. Amer. S.S. 

 2: 86, 87. — Handsome round-headed tree, remarkable for 

 its large foliage; not hardy iu the North. 



