SORBUS 



pinnately lobed with broad and short, irregularly ser- 

 rate lobes and 5-8 pairs of veins, whitish touientose be- 

 neath, 2K-4 in. long; petioles ii-% in. long: lis. about 

 K in. across, in broad, tomentose corymbs: fr. orange- 

 red, globose or siibirlobose, about % in. high. May. 

 Northern anil niiil.lli Kui i'Ik'. — This is sometimes con- 

 founded wiii ■-. ii'l considered to be a hybrid 

 of similar . I J < irtainly a good species. It 



never bear^ ili-i i 1- :u!' i.< at the base and the sinuses 



do not reach farther than one-third toward the middle. 



11. nabelliidUa, S. Schau. (P^ncs Aria, var. flabelli- 

 fdlia, Arb. Kew. Aria flabellifdlia, Decne. 6'. flabel- 

 lAta, Hort. ). Small tree, attaining 20 ft. : Ivs. orbicular 

 to broadly oval, obtuse, usually broadly cuneate at the 

 base, incisely lobed above the middle, with the short 

 lobes truncate or rounded and coarsely toothed, snowy 

 white beneath, iyi-2/i in. long: fls. scarcely % in. 

 across, in dense, white-tomentose corymbs: fr. de- 

 pressed-globose, orange-red. Southeastern Eu., W. 

 Asia.— Cult, in some nurseries as Pyrus attrea striata. 



12. Aria, Crantz (Pynis Aria, Ehrh, Aria nlvea, 

 Hort. Hdhnia Aria, Mei.}. White Beam-tree. Fig. 

 2354. Tree, with broadly pyramidal or oval head, 

 25-50 ft. high: Ivs. I'oundish obovate to oblong-oval, 

 usually cuneate at the base, acute or obtuse at the apex, 

 sharply and doubly serrate, of firm texture, bright or 

 dark green and glabrous above, white-tomentose be- 

 neath, 2-5 in. long; petioles %-% in. long: fls. %-% in. 

 across, in tomentose, 2-3-in. broad corymbs: fr. sub- 

 globose, orange-red, about K in. high. May. Middle 

 and southern Europe to Himalayas and Siber. — De- 

 sirable tree for dry and exposed situations, and very 

 ornamental in foliage on account of the contrasting 

 colors of the upper and under sides of the leaves. Sev- 

 eral vars. are known. Var. Cr^tica, Lindl. i .1 rln <lritrn, 

 Decne.). Lv... orl.i.-„lar-,.l,nvat,., .-nar-.-lv ,l,mli|v -rrate, 

 1^0-3 in. 1..1I-. «-iih i;-lii pair. ,.i v.ii,.. s.^uiIh m Eu. 

 Var. Decaisneana, K.-lid. [Arm li, , „ i.. „, :, „'i . Lav. 

 Pyrus Di-r„is„,,;„a, Niclmls.). Lvs. cUiptic^ I., ,.1. lung- 

 ovate, acute, irregularly doubly serrate, 3-ri in. long: 

 stamens longer than petals: fr. oval. Probably from 

 the Himalavas and sometimes cult, as S. Nepalhisis. 

 Var. 6dulis, Wenzig (Pxtriis fduHs, Willd.). Lvs. ellip- 

 tic-oblong to oblong, rounded or acute at the apex, 

 2-5 in. long: fr. oval, K-H in. high. There are some 

 garden forms, as vars. aiirea. chrysophylla and \uUs- 

 cens, with more or less yellow foliage. 



{Aronia group, species JVos. IS and 14.) 



13. arbntifaUa, C. Koch (Pyrus arbutifdlia, Linn. f. 



SORGHUJI 



Aronia arbutifdlia, Elliot. A. pyrifdlia, Pers. Me'spi- 

 lus arbutifdlia, var. erythrocdrpa, Michx. ) . Red Choke- 

 berry. Upright shrub, 6-12 ft. high: lvs. short-peti- 

 oled, oval to oblong or obovate. acute or abruptly acu- 

 minate, crenately serrate, glabrous above except some 

 glands on the midrib, whitish or grayish green and to- 

 mentose or pubescent beneath, lH-3 in. long: corymbs 

 tomentose, few to many-fld., 1-VA in. broad: fls. white 

 or tinged red, J^-K in. across: fr. subglobose or pear- 

 shaped, bright or dull red, about % across. April, May. 

 Nova Scotia to Minn., south to Fla. and La. B.M. 3668. 

 G.F. 3:417. 



14. melanocarpa, C.Koch (P^rKSKlffro, Sarg. Aronia 

 n),ir<i. K.i.-lun-. Pi/nis arbutifdlia, var. nigra, Willd.). 

 Ki.M K Cih ki 1.1 KKY. Closely allied to the preceding, 

 u-ii -. oval to obovate, abruptly acuminatt 



ni . I. i-n and glabrous or nearly so beneath : 



<ai\ \ :-!iu ;. ;; iN glabrous or nearly so: fr. globose, 

 aljoiii :, ui. acniss, shining black. Nova Scotia to On- 

 tario, south to Fla. and Mich. April-June. B.B. 2:237. 

 Var. grandifdlia, Dipp. {Pgrus grandifdlia, Lindl.), has 

 larger, obovate or broadly obovate lvs. and larger fls. 

 B.R. 14:1154. Var. subpubfesoena, Lindl., has tlie Ivs. 

 pubescent beneath when young. An ini^ run ihii. i,ntn 

 between the two preceding specie.; i- ; j : IK". 



12:1006 as Pi/nis WoWftHHrfa, Lindl.: - uv 



found wild occasionally in the iK.riln .-ii n -'.^i. .;. 

 Both species are handsome shnibs; ^■'. mthmoiutrpa is 

 prettier in foliage and in bloom, while S. arbuli folia has 

 showier and usually more numerous fruits. The fruits 

 of both species remain „on the branches during the 



1689 



S. alnifblia. Wenzig {Pyrus Miyabei, Sarg. Micromeles alni- 

 folia, Koehne). Tree, 60 It. high: lvs. obovate and abruptly 

 aeuminate or ovate, serrate, glabrous at leneth, but on vigor- 

 ous shoots, often remaining tomentose beneath, 2^ in. long: 

 lis. in 6-12-lid., almost glabrous corymbs; fr. subglobose, Ji in. 

 across. Japan. Gt. 41, p. 283, 2«. Q.V.l-.eA.—S. Chamcemes- 

 pilus, Crantz {Pyrus Chamiemespilus, Poll. P. alpina, Dur. 

 Aria Chamffimespilus, Hos.). Upright shrub, 6 ft. high, allied 

 to S. Aria. Lvs. elliptic to oblong serrate, almost glabrous. 



1J^-2K in. long: tls. pinkish, with upright petals, in dense 

 corymbs about 1% in. broad : f r. oval, orange to brownish red. 

 Middle and southern Europe. — 5. densiflbra, Heynb. (Pyrus 

 densiflora, Spach. P. alpina, Willd., not Dur. Aronia alpina, 

 Dipp.). Hybrid of garden origin between S. Aria and S. me- 

 lanocarpa: shrub, 5 ft. high: lvs. oval to elliptic-oldong. whitish 

 tomentose beneath, \%-Z in. long: fls. white or pinkish, in 

 dense corymbs 1 -li^ in. broad; fr. pear-shaped, dark bluish 

 purple.— jS. disccior. Maxim. Closely alUed to .S. .\ucuparia, 

 but quite glabrous; Ifts. oblong-lanceolate, larger, gla 



Zuc</.)'. 



Tau.srl 

 high: 



•His, Wenzig (PjTus gracihs, Sieb. & 

 ■ ■ "the 



tho 



the 



in dense corymbs about 2^ 

 E M. Europe. Gn. I 

 r (PjoTis lanata, Don, 



itli large, ineised-dentate stipules. 

 I Pyrus Hostii, Hemsl. P. Sudetica, 

 . f.). .Supposed to be a hybrid be- 

 nespilus: shrub or small tree, 12 ft. 

 bovate, sharply serrate: fls. pinkish, 

 broad; fr. globose, ovoid, red. 



;305. 



R.H. 1877:210.— S. landta. 

 oestica, Hort.). Tree, allied 



ilouWy seiTiite and slightly 





with 5 styles: fr. subgluhose, % in. across. W. Asia.— A', i-estlta. 

 S. Schan. (Pyrus vestita. Wall. P. crenata, Lindl. S. Nepal- 

 ensis. Hort.). Tree, allied to S. Aria: lvs. elliptic to elliptic- 

 oblong, doubly serrate, densely tomentose beneath,. 3-7 in. long; 

 styles 5, woolly at the base only. Himalayas. G.C. II. 1:17. 

 Alfred Rehder. 

 ^ SOEGHUM. The genus Sorghum is referred to An- 

 dropogon by Hackel and others, and its botanical rela- 

 tions are discussed under that name. It forms a section 

 of that genus, only one species of which is of economic 

 importance. The various cultivated varieties known as 

 Sorghum, Broom Corn, Kaffir Corn, Jerusalem Com, 

 Millo Maize, Durra, etc., are considered as having been 



