1702 



SPiR.EA 



SPIR.EA 



Handsome, bushy shrub, ijuite hardy; cult, under many 

 different names as 6'. aqnile<ji.fdlia, adiantifblia, cra- 

 t ce (I i fo I i a , Blhinel . 



l-i. Van Houttei, Zabtel [S. Cfnitonien^is x frilohata. 

 S. aquilegit'dlifi, v&r. I'uii Hoittfei y Briot.}. Fig. '23(JG. 

 tihrub, ft. hi^h, with arching branches : ]vs. rhom- 

 bic-ovate or rhombic-obovate, rounded or somewhat 

 narrowed at the base, acute, incised serrate, dark green 

 above to pale Vjluish green beneath, '*4-li?4 in. long: lis. 

 white, /i in. across, in many-Hd. umVjels; petals twice 

 as long as stamens; sepals upright or spn-aiUiig in 

 fruit. May, June. Of garden origin. <.ln. 'I'A, p. 27)]. 

 G.F. 2:;U7. Gug. 5:210. A.O. 15:297. P.(t. H:17:i. 

 M.D.G. 1900:17. -This is one of the most beautiful, or 

 perhaps the most Iteautiful, of the ear!y-l)looming 

 Spireas and rjuitf hardy. Sometimes confounded witli 

 the t'oregoin;,^ wliich is similar but smaller in every 

 part and less showy. 



15. Cantoniensis, Lour. {S. I?r''vi\'</ii)iii , Inndl. .S. 

 lanceoldfa, I'nir. S. ccri/nilidsa , Koxb.). Shrub, 4 ft. 

 high, with slender, arching branches : Ivs. rhombic- 

 lanceolate, incisely doubly serrate, dark green above, 

 pale bluish green beneath, 1-2^ in. lonj^: lis. over '::i in. 

 across, in rather dense umbels; sepals upright in fruit; 

 follicles with spreading styles. Mav, drine. Ciiina, 

 Japan. B.R. ;-5il:10, A.G. 18:;i56. — Very handsome 

 shrub, with hir;:e pure white fls., but only half-hardy 

 north. Var. fibre pleno, with do\ible fls. and narrower 

 Ivs., is still more tender. This species and the three 

 foregoing are valuable also for their handsome foliage, 

 which remains fresh and green until late in fall. 



Ifi. blinda, Zabel {S. Chhnhisis x Caulonirusis. S. 

 Refvesiana rolnUta, or vova , Hort. ). Upriglit shrub, 6 ft. 

 higli, with arching branches: Ivs. oblong to ovate, acute 

 at both ends, incised serrate, dark green and almost 

 glabrous above, grayish tomentose beneath, l-l'o in. 

 long: fls. rather large, pure white, in pubescent umbels; 

 sepals ovate-lanceoiate, upright in fruit: follicles pu- 

 bescent, with spreading styles. May, J\me. Of garden 

 origin. —Onl}'' half-hardy north. 



17. Chin^nsis, Maxim. ( ,S. 'pithesce)iy, Lindl.). Ui>right 

 shrub, 5 ft. high, with arching branches, tomentose 

 when young: Ivs. Jong-petioied, ovate, incisely serrate 

 and sometimes 3-lobed, finely pubescent ab(»ve, yellowish 

 tomentose beneath, 1-2 in. long: Hs. pure white, about 

 S in. across, in pubescent umbels; sepals upright in 

 frnit, ovate-lanceolate, tomentose like the follicles ; 

 styles terminal, spreading. IVlay. China. B.R. 33:H8.— 

 Handsome, but not hardy north. 



18. pub6scens, Turc'z. Upright shrub, ft. high, with 

 slender, arching branches: Ivs. similar to those nf the 

 foregoing sj'ocies, l)ut more grayish tomentose beneath 

 and somewhat smaller, petioles shorter: fis. ^4-'-;^ in. 

 across, in glabrous lunbels; se])als triangular-ovate, 

 uprit^'ht in frnit: follicles glabrous, with the spreading 

 styles below the ai)ex. May. N. China. G.F. l::!:il.— 

 Hardy north, and Ihe large-tld. form as handsome as 

 the foregoing s]jecies. 



10. m^dia, Srlnnidt (S. eoufusa, Regel & Kccrn.). 

 Upriglil shi-ub, :. ft. high, with terete branches, gla- 

 brous or pubescent when young: Ivs. ovate to oblong, 

 cuneate at tlie b;ise, incisely serrate jibovf tin- niiildle, 

 ahnost- glabrous or pubescent. ]-2'4 in. loni;: tls. in 

 many-fld. rather long-stalked, umbel-like racemes; fol- 

 licles with the spreading or reflexed styles somewhat 

 below the apex. May. S. E. Eu. to Japan. — Var. gla- 

 brescens, Zji.hel. Almost ghibrous. Var. oblongifolia, 

 Relid. (N. "hJnn.jifn/nf, Waldst. .^- Kit.). Lvs. elliptic- 

 oblong (o ob|oii,--laiiceoia,te, narrowed at both en<ls, en- 

 tire or with 1-:; ti-eth at tho niM'x. Var. sericea, K'egel 

 {S. sericea, Turrz.). Lvs. jmbescent on both sides! 



20. chamsedryfolia, Linn. Slirub, C ft. high, witli 

 an,i,Mi|;i.r, ghibrous bran. 'lies: h's. distim-tlv i>ef inled, 

 ovale to lanc.-olate. siiarj^ly ;nid ofi.'u doubly scrriite. 

 almost glabrous, Iduish green benenlli, 2-,! iu. Njul;-: lis. 

 in many-lid. uml>els, the lower ones loii--st;ilko?|, tlie 

 upper ones often almost sessitr: tolli(des with the styles 

 upright and terminal. S. E. i;u. io .laiian. —Var. ilex- 

 u<isa, Maxim. {S. f/crunsa, I'^isidi.). Less high, wifli 

 spreading more lu- less zi^-za- branches: Ivs. narrowiT, 

 sharply serrate above the middle. Siberia to Dahuria. 



Var. ulmifolia, "Maxim. (;S'. nhnifblia, Scop.). Upright: 

 lvs. ovate, incisely or doubly serrate from lielow the 

 middle: lis. larger, about y^ iti. across, appearing later 

 L.H.C. 11:1042." B.R. 15:1222. Both vars. are often 

 cult.: they spread, like the preceding species, by 

 suckers. Sometimes as .S. atrifoUa or aiihifoUa hi 

 gardens. 



Section 4. Calospira {Species Nos. 21-3G). 

 A. St<niii')is as Jong as petals: lvs. 

 sttiaU, }-2-l '"• lonf/: fl.s. -wltite. 

 B. Height J-6, occaslonaUij 13 ft. . .21. canesceus 

 BB. Ui'ijjhf ali/nit ^ ft 22. decumbens 



AA. S/illlieus /niH/i'r /ll'! II jictaU. 



B. <_'<>)■>/ 1, ihs oil lalinil lna-»rl,h'ts 

 aloiitj tin; Ordttc/n-s of tlie pre- 

 r)on.'< ijear. 

 c. Whifei'-fnifls slender. Jejtujer 



than petioles 23. longigemmis 



cc. Wi-iiter - bml.s slio}ier t h a n 

 petioles. 

 1.' . !Sli oats a ngit la r: lvs . u sn- 

 ail}/ broadly ovate 24. bella 



DD. Shoots teret<; : lvs. iisiialli/ 



ovate-lanceolate 25. expansa 



EB. Corymbs terminal on upright 

 shoots of the year. 

 0. I71 florescence pubescent, 

 rarely glabrous, very com- 

 pound, besides the teruiinal 

 corymb lateral ones htootn- 

 ing sotneivhut later appear 

 bene at h it. o n 1 y u- e a k 

 branches ivilh a s i n g 1 e 

 cori)}nti. 

 D. Sivrub 1 ft. or le.^s hif/h, 

 u-ilh bull. lie lvs. less than 



1 in. long 2(i. huUata 



DD. Shrubs l~5 ft. high, ivlth 

 larger t vs . 

 E. Bniuehes terete. 



F. Ji'ipe follicle s d i - 



I'ergiiKj 27. Japonica 



FP. li'iju' follicles iijiriqht, 

 straight. 



c;. Fls. piul: 28. Margaritas 



Gu. F I s. u- h i t i .V /; r 



blushed 29. roxii 



EE. Branches more or less 



u ni/n liti-, -rather stiff, 

 ahnnsf g/abrous. 

 F. Color of fls. p i n k , 



rarely n-hilish 30. Bumalda 



FB\ Color of fls. u-hite . . . .31. albillora 



cc. fufloreseriiec Usually gla- 

 brous, ronsisti uij of onli/ one 

 leeuiinal eorynib : fvl'licles 

 )inl d i rergi)ai . 

 D. Sepals refle.red in fruit : 



petals orbicular 32. SUpsrba 



DD. Sepuls spreailing or half 

 upright: petals oral to 

 oblong. 

 E. Fls. white. 



F. < 'ory mil usu<illy pu- 

 bescent 33. coryinhosa 



FF. Corgmt' usualli/ glu- 

 brous. 

 G. Lrs. u s 'u a 1 I y i u - 



<-is<d -serrate 34. lucida 



GG. Lvs. u s u<i I I y cre- 



n<it< ly srrrate 35. betuliiolia 



EF. Fls. pink 30. densiflora 



21. can^scens, O. Don. Sbrul). or sometimes 12 ft. 

 high, with s] -reading and arching branehes: lvs. broadly 

 oval to obovate, very short-petioled, crenately dentate 

 above the niid<l!e, grayish green, pubescent beneath or 

 sometimes nliuost ",i;-la.brous at length, 1^-% in- lo^^^^ 

 tls. whil-e. ralher small, in dense, semi-globose corynd^s 

 to 2 in. across. apiM-aring very profusely along the 

 braiKdu's: sejials u]u-ii;'lil or spreading in fr. : follicles 

 villous, with the asceu<ling styles a" little below the 



