SPIRAEA 



1703 



apex. .lul}'. Himal. (in. 45, p. 49; 49, p. 421; 52, p. 28; 

 54, p. 48. Very graceful and handsome shrub, but not 

 hardy north. It occurs under very many different, 

 names in the gardens, us S. iiri/rii/i-n , i-nmiitu, cinn'i- 

 fblia, flmii'lliMd, flagellifdrmitt, rotundifdlia, raccinifd- 

 lia, and others. 



22. decumbens, VV. Koch (S. prociimbens, Hort. ). 

 Dwarf, procumbent shrub, about % ft. high, with as- 

 cending branches, glabrous: Ivs. elliptic to oblong, 

 acute at both ends, creiiately serrate above the middle, 

 glabrous, %-l in. long: fls. white, in small corymbs, 

 about 2 in. across: follicles glabrous, with upright ter- 

 minal styles. June. Tyrol. G.C. II. 11 : 752. -Pretty 

 shrub for rockeries. 



23. loiiKigemmis, Maxim. Shrub, 4 ft. high, with 

 slender terete branches, glabrous: axillary buds acumi- 

 nate, longer than the petioles : Ivs. ovate-lanceolate to 

 oblong - lanceolate, incisely and doubly serrate, with 

 glandular-tipped teeth, bright green, glabrous, l%-2% in. 

 long: fin. white, in rather loose, 2-.'t-in. broad, pubescent 

 corymbs; sepals spreading in f r. : follicles almost gla- 

 brous, with terminal spreading styles. June. N. W. 

 China. G.F. 7::t45.-Hardy. 



24. bella, Sims (S. ovata, and S. cdccinea, Hort.). 

 Shrub, 3 ft. high, with slender, spreading branches, an- 

 gular and sparingly pubescent : Ivs. broadly ovate to 

 ovate, sharply and often doubly serrate, almost gla- 

 brous, whitish or bluish green beneath, 1-2 in. long: 

 fis. polygamous, pink, in small corymbs, %-2 in. across; 

 stamens little longer than petals; sepals reflexed in fr. : 

 follicles pubescent only at the inner suture, with 

 spreading styles. June, July. Himal. B.M. 2426. 

 L.B.C. 13:1268. -Only half-hardy north. 



25. ezpansa, Wall. (S. billa, var. expdnsa, Regel. 

 5. Kumaontnsis, Hort.). Closely allied to the forego- 

 ing, more vigorous and upright, 6 ft. high, with terete 

 branches tomentose when young: Ivs. ovate-elliptic to 

 ovate - lanceolate, acute at both ends, sharply serrate 

 from the middle, usually pubescent on the veins be- 

 neath, l%-3 in. long : fls. white or pale pink, in 1-4 

 broad corymbs: follicles pubescent, diverging. July. 

 Himal. 8. pulchella, Kunzo (N. Kumaoninsis, Hort.), 

 is supposed to be a hybrid of this and the foregoing 



2365. 



Spiraea trilobata (X K). 

 No. 13. 



species ; it combines the broader corymbs of the latter 

 with the brighter color of the first species, therefore 

 handsomer than either parent; sometimes cult, as S. 

 expdnsa rubra, but there is also another hybrid of the 

 same name. See S. rubra in suppl. list. 



26. bullata, Maxim. (S. crispifblia, Hort.). Dwarf 

 shrub, with strictly upright brown, villous branches: 

 Ivs. roundish ovate to ovate, very short-petioled, In- 

 cisely serrate, thickish and bullate, almost glabrous, 



grayish green beneath, J^-% in. long: fls. deer pink, in 

 small and dense corymbs, \Yi-A in. across. July, Aug. 

 Japan, (it. 35:1216. 



27. Jap6nica, Linn. (A>. ni/lfixn, Thunb. S. Fdrtunei, 

 Plunch.). Slmil.. I ft. high, with upright branches 

 glabrous or puberulous when young: Ivs. ovate to 

 oblong-lanceolate, acute at both ends or acuminate, 

 doubly and incisely serrate, pale bluish green and usu- 

 ally glabrous beneath, 1-4 in. long: tls. small, pale to 

 deep pink, in usually much compound and rather loose 

 corymbs; sepals reflexed in fruit: follicles glabrous, 



2366. Spiraea Van Houttei. No. 14. 



diverging, with ascending styles. June, July. Japan to 

 Himal. F.S. 9:871. B.H. 8:129. P.F.G. 2, p. 113.- 

 Handsome shrub, with the young unfolding Ivs. of a 

 pretty purplish color; usually much cult, under the 

 name 8. callosa. 



Var. F6rtunei, Rehd. (5. F6rtunei, Planch. S. cal- 

 Usa, LSndl., not Thunb.). Higher, with quite terete 

 branches: Ivs. 2-4 in. long, oblong-lanceolate, acumi- 

 nate, sharply and doubly serrate, with incurved, callous- 

 tipped teeth, rugose above, bluish white beneath: 

 corymbs very compound, rather loose; disk none or 

 very minute. This seems to be the Chinese form; the 

 Japanese form grows less high, has smaller and broader, 

 coarsely doubly dentate-serrate Ivs., not rugose and 

 less whitish beneath; the stems are slightly striped by 

 the decurrent petioles and the inflorescence is less 

 compound. Var. atrosanguinea, Hort. Fls. deep pink, 

 in tomentose corymbs. Var. rub6rrima, Hort. Fls. 

 deep pink, in puberulous corymbs. Var. macrophyila, 

 Simon-Louis. Lvs. becoming 6 in. long,bullate: corymbs 

 small. Var. glabrata, Nichols. (S. glabrilta, Lange). 

 Of more rigid habit- Ivs. ovate, glabrous: fls. bright 

 pink, in glabrous corymbs. Var. pubescens, Regel. Lvs. 

 pubescent on the veins beneath; corymb tomentose. 

 Most of the other forms often enumerated as varieties 

 are hybrids of this species. 



28. Margaritas, Zabel (S. Japdnica x suptrba). Shrub, 

 5 ft. high, puberulous: Ivs. ovate-elliptic to elliptic, 

 coarsely and often doubly serrate, pubescent on the 

 midrib beneath and pale green, 2-3 in. long: fls. rather 

 large, bright pink, in broad corymbs; sepals spreading 

 in fruit: follicles upright, glabrous, with upright styles: 

 July, Aug. Of garden origin. Handsome, very free- 

 flowering form. 



29. F6xii, Zabel (S. corymbdna x Japdnica). Similar 

 to the preceding: branches more or less striped, almost 

 glabrous: Ivs. elliptic, doubly serrate, glabrous: Us. 

 whitish or pinkish, in large, puberulous corymbs; styles 

 spreading in fruit. June, July. Of garden origin. 

 Less desirable than the preceding hybrid. 



30. Bumalda, Burvenich (8. Japdnica x albiflora. 

 8. pumila, Zabel). Shrub, 2 ft. high, rarely higher: 

 Iva. ovate-lanceolate, sharply and doubly serrate, gla- 

 brous, 2-3 in. long: fls. whitish to deep pink: follicles 

 diverging. July, Aug. B.H. 17:12. Gn. 46, p. 416. Mn. 

 2, p. 24. Cult, in many different forms, probably all of 

 garden origin. One of the best is var. Anthony Waterer. 

 a very free-flowering, compact shrub with bright crim- 

 son fls. in rather dense corymbs. Gn. 45:945. G.C. III. 

 14:365. A similar form is 8. Lemdinei, Zabel (S. Bu- 

 mdlda, var. rvbfrrima, Hort.), hybrid of 8. Bumalda 

 and 8. bullata, a low, compact shrub, with somewhat 

 bullate Ivs. and pink fls. 



