]G8S 



SORBUS 



SOHBUS 



4:173, 174. — A very v;iri;ible species; the eastern form 

 resembles more the iireceding species, and intermediate 

 forms are not uncommon in tlje mirtlteastern states. 

 The most distinct form is var. Grayi, Wenz. ( var. pii- 

 mila, Sarg. Pfjmx oeridi'iildlix, Wats. I. Slirubby .- 

 Ifts. 7-11, oval to Mval-oblonn-, cbtnse, with only a few- 

 teeth at the a]ie.x. bluish gi-c-eii: cei-ynib^ 1-2 in. across. 

 Wash, to Calif. U.F. 10:H,". N. aa u,lnirii'oUa is often 



'.%}0' 











-''-^ff/rM.-- 



2352. Sorbus Americana ( z .';i 



confounded with tlie preceding; species; botCi^re very 

 handsome in autumn with their large clusters of bright 

 red fruits. Sometimes a form of S. hyhrida is found in 

 American nurseries under tlie name of S. .sanibiicifo!i<' . 



{Oormn.-i group, sjxc-ir.^ 5-7.) 

 5. dom^stica, Limi. [Pi/ms Sm-hnx. Gt'prtn. P. rh>- 

 me'.sficu, Snjith. Connii.s domrs/ira , Spach). .Servick 

 Tree. Fig. 2.353. Round-headed tree, 30-60 ft. high : 

 winter-huils glutinous: petioles tomentose; Ifts. 11-17, 

 obovate-o))long to oblong, sharply and rather coarsely 

 serrate, with acuminate teeth, usually entire near the 

 base, green and glabrous above, lluccuse-tomentose be- 

 neath, at least when young, 1-2^2 in. long: lis. whitr, 

 ^2 in. across, in broadly pyramidal rather loo.sf, tomen- 

 tose corymbs: fr. 3-2-1/4 in. aeross. usually yi-llowish. 

 with red or orange cheek, apple-sb;i]ted in var. mali£6r- 

 mis, Lodd., pear-shaped in var. pyriformis, Lod(J. May. 

 S. Eu., N. Afr. and W. Asia. (.i.C. II. 1:283; 0:G4;"t. 

 M.D.G. 1897:376-378. — This species is often corifoundi-d 

 with the European ash. from wliieh it is almost indis- 

 tinguishable without fruits or flowers, except by the 

 glutinous winter-buds. 



0. hj'brida, Linn. ( Pfjrus pinna/! f Ida .TAwh. P. Frn- 

 ii'trn. Balnnti:r. S. iiifcrtni'dia x A nciipii rid ) . 'I^rcc-, aT- 

 t:iining40 ft., of regular, pyramidal habit with upright 

 branches: young branchlets and jictiolcs whitish tomen- 

 tose; Ivs. ovate to oblong-ovate, with 1-4 pairs of de- 

 current Ifts. at the base, or but jiinnately lobcd, upper 

 part lobed with the lobes becoming gradually sliortrr 

 and more indistinct toward the apex, dark greVn above, 

 "whiti'-ili or irrayish tomentose beneath, 2'y-.5 in. long; 

 peti(.les altoiii-, 1 in. long: fls. y^-^-i in. across, in tomen- 

 tose corymbs about 3 in. broad: fr. globose-ovoid, H in. 

 high. May. June. - Natural hvbrid, orcasionallv found 

 witii tlie parents in Europe, two different byln-i.ls are 

 usnally inrduded under ,S'. /ii/briiUi ; the typical one is 

 S. Anraptirid x iiifertned/a, whitdi has the Ivs. oblong- 

 ovate to oblom:, 3-.' iu. long, wilh 10-12 pairs of veins. 

 the Ifts. ami lobes narrower and j.ointed ;iiid tlio veins 

 often sliy-litly recurved, it is niostiv cnjf. under 1lic 

 name of ,S'. >/nryritn/i(i f»r <jU('rr.>)d,'^, Hort. The secon<i 

 hybrid is va.r. Tlinri lu/hira , Helid. {Pf/rifs Tli n ri ini'mrn , 

 Use), and is a hybrid of S. Aitcuparia x Aria ; it ha,s 



ovate- to ovate -oMinig Ivs., somewhat more deeply 

 lobed, 2.^-j-i in. long, witli H-10 [lairs of veins, Ifts. and 

 ]<..bes broader and obtusish, with the veins ii-sually 

 curving upwards. This is i^nown in gardens as t>.qtii-i-- 

 i:ifi>tiii hjihriila uaiid. Var. dectirrens, Koehne {S. hnni- 

 (/iii'Ksii, Hort., not Kit.), is a transition to A'. Aitrujui- 

 ■ria : only Ibe it or o upper Ifts. are connate into u ]•■!■- 

 minal 1ft., which, like the upper separate Ifts., is decur- 

 rent at the base, under side less densely tomentose. In 

 some nurseries under the name of -!>'. sambut-ifoJia, 



7. spiiria, Pers. (Pi)r,is heierophfilhi , Dur. S. An- 

 cujx'iriii X II ihntit'(diii ) . Shrub or small tree, attainiiii,^ 

 l.j ft., with slender, sometimes pendulous branches; 

 Ivs. ovate to oblong-ovate, obtuse, with 2-0 lobes or Ifts. 

 near the base, simply crenate-serrate toward the apex, 

 13--:-3M in. long, pubescent or glabrous beneath; Ms. 

 white or pinkish Avhite, in pubescent or glabrous co- 

 rymbs 1-1 .^.2 in. broad: fr. subgloliose or pear-shaped, 

 dark purple or almost black. May, June. Of garden 

 origin. B.R. 14:11%. — Sometimes cultivated under the 

 name S. qiicrcifoUa fln-ribninhi ikiiki. Hybrids of dif- 

 ferent origin are usually united under <S'. spuria: the 

 more pubescent forms wilh dark purple fr. areprobablv 

 the offspring of A'. J a<-if/un-ia an<l .S'. a rb,(fif,dia , while 

 the more glabrous ['orins \\itli u so ally blaid<ish frniL 

 have S. Ancuparin and S. iiwla nocurjxi iis their parents. 

 A similar form with quite glalirous and more pointed 

 Ivs., originated at the Arnold Arboretum and probably 

 a hybrid of S. A)H<iricavu and S. niela uocurpa^ was 

 named S. t>itr(j<niii, Dipp. 



(Ti'irtii ill aria group, sjxi-ics A'e. S.) 



8. torminalis, Crantz {Pifrns form iw) lis, Ehrh. Tor- 

 mliiilria (ormina/i.s, Dipp. 'I\ Clnsii, Ra-m.). Wild 

 Service Tree. Round-headed tree, with spreadint; 

 branches, 40-80 ft. high: Ivs. broadly ovate, slightly 

 cordate to bi'oadly cuneate at the base, with several tri- 

 angular-ovate, serrate lobes on each side, the lower, 

 sinuses reaching about half way to the middle, floccose- 

 tomentose when young, 2-4 in. long; petioles 1-1^4 in. 

 long: fls. white, }<2. in. across, in broail, rather loose 

 t<nnentexse corymV^s : fr. oval, ^ -2-% in. high, brown, 

 dotte<l. I\ray, June. Southern and mhldle Europe.— 

 The foliage turns bright red in fall. 



(Aria f/roup, .spcrics 9-12.) 



9. latifdlia, Pers. {Pi)ru.<; roiuiuli folia , Bechst. P. 

 inferm&diii , var. hifif(>Ho, Ser. P. A.riu, var. hififidia, 

 Hort. ToriuinHria Iniifnlia, Dipp. .S". Aria xtonin- 

 uctlis). Tree, attaining 50 ft., similar to the preceding: 

 Ivs. broadly ovate to ovate, usually rounded at the base, 

 pinnately fobed with short, broadly triangular, sharply 

 serrate lobes and with 6-9 pairs of veins, grayish or 

 whitish tomentose beneath, 2^-4 in. long: petioles 

 y^-l in. long: fls. about % in. across, in broad, tomen- 

 tose corymbs: fr. globose or globose-ovoid, about }4 i^i- 

 high, orange toJirownish red. May, June. Occasionally 

 occurring in middle Euroi)e. 



2353. Sorbus domestica ()■, ^ n) . 



10. intermedia, Pers. {Pi)rus i utemnajiu , Ehrh. Sor- 

 J'lis SriJiidica, Fries. Aria Siih-ica, Koehne. fldhniit 

 Xnrrlra, Dipp.). Tree, 20-40 ft. high, with oval head: 

 Ivs. ovate to oblong-ovate, broadly cuneate at the base, 



