XXVI. iiosA^cE-s;: svmm a. 



309 



23. S. LiEviGA'TA L. The smooth-leaved Spiraea. 



'Identification. Lin. Mant., 244.; Camb. Monog. ; Dec. ProA, 2. p. 544. ; 

 I Don's Mill., 2. p. 519. 



'Smonymes. S. altait^nsis Lazm. Nov. Act. Petrop. 15. p. 555. t. 29. f. 2. ; 

 ' S. altiica Pall. Fl. Moss. 1. p. 272. 



r.ugravings. Nov. Act. Petrop., t. 29. f. 2. ; Pall. Fl. Ross., 1. t. 23. ; and 

 our^. 522. 



'^pec. Char., ^-c. Leaves obovate-oblong, perfectly smooth, 

 ; entire, sessile, tipped with a small raucro. Branchlets 

 I of the panicle cylindrical. Bracteas linear, rather shorter 

 \ than the calyx. Lobes of the calyx triangular, ascending. 

 {Dec. Prod.) A spreading shrub. Siberia, in valleys at 

 the foot of the more lofty of the Altaian Mountains. 

 , Height 2 ft. to 4 ft. Introd. in 1774. Flowers white; 

 I May and June. Capsule reddish ; ripe in September. 



! A very interesting and handsome species, with a habit 



ixceedingly dissimilar to that of spiraeas in general. 522. s. lEvigiu. 



I sife 24. iS". .4Ri^FO^LiA Smith. The White-Beam-tree-leaved Spirsea. 



ientification. Smith, in Rees's Cyclop., vol. 33. ; Bot. Reg., 1. 1365.; Dec. Prod., 2. p. 544. ; Don's 



aiill., 2. p. 520. 



ngravings. Bot. Reg., t. 1365. ; and our Jigs. 523, 524. 



Spec. Char., S^c. Leaves elliptical, oblong, 

 more or less lobed, toothed, pale, villose 

 beneath. Panicle villose. {I)ec. Prod.) 

 An erect bushy shrub. North America, ^^S 

 principally on the north-west coast. '^''^ 

 Height 6 ft. to 8 ft. Introduced in 1827. 

 Flowers white ; June and July. Capsule 

 reddish ; ripe in September. 



A free-growing dense bush, prolific both 

 in leaves and flowers ; and, as the latter 

 appear at a season when the flowering of 

 shrubs is comparatively rare, it is justly 524. s.ari^aua. 

 considered as a most valuable addition to 

 itish gardens. It is perfectly hardy, will grow in any free soil, and is easily 

 opagated either by division or by seeds, which it ripens in abundance. 



523. S. orisfolia. 



iv. Sorbdria Ser. 



t. Char. Leaves pinnate, resembling, as the name implies, those of the 

 nountain ash, or other species of Pjrus belonging to the section <S'6rbus. 



a 25. S. 50RBIF0Y1A L. The Sorbus-leaved Spiraea. 



ification. Lin. Sp., 702. ; Camb. Monog. ; Dec. Prod., 2. p. 545. 

 iyme. S. pinnkta Marnch Meth. 633. 

 avings. Gmel. Fl. Sib., 3. p. 190. t. 40. ; Schmidt Baum., 1. t. .58. ; and our^. 525. 



'c. Char., 8fc. Leaves stipuled, pinnate ; the leaflets sessile, opposite, lan- 

 beolate, doubly and sharply serrated. Inflorescence a thyrse-like panicle, 

 torus wholly connate with the tube of the calyx. Ovaries connate, 5. 

 \Dec. Prod.) A thick stilF-branched shrub. Siberia, in moist places. Height 

 iJft. to6ft. Introd. in 1759. Flowers white; Jidy and August. Capsule 

 leddish ; ripe in September. 



' ~ieti/. 



a. S. s. 2 alpma Pall. Fl. Ross. i. p. 34. and 89. t. 25. S. grandiflora 

 Sweefs Hort. Brit. p. 194.; i?. Pallas/i Don's Mill. ii. p. 520. 

 Suffiuticose. Flowers twice the size of those of the species, and 

 disposed in corymbs. Leaves smaller, and serrately incised. A na- 

 tive of Eastern Siberia and of Kamtschatka. {Dec. Prod.) This is 



X 3 



