CHAP. XLII. 



ieOSA V CE7E. SPlTUE y A. 



31 



p. 544.) This species, in its mode of growth, resembles S. salicifolia, but 

 differs from it in having rather smaller and more deeply serrated leaves, 

 which are very tomentose beneath. The flowers are much smaller, and of 

 a deeper red. Notwithstanding these differences, we are strongly inclined to 

 think that it is only a variety (though we allow it to be a tolerably distinct 

 one) of S. salicifolia. It deserves a place in every collection. It may be 

 well to plant it in heath mould. 



as 20. S. LiEviGA v TA L. The smooth-leaved Spiraea. 



Identification. Lin. Mant, 244. ; Camb. Monog. ; Dec. Prod., 2. p. 544. ; Don's Mill., 2. p. 519. 

 Stfitonym.es. S. altaicensis harm. Nov. Act, Petrop., 15. p. 555. t. 29. f. 2. ; S. altaica Pall. Fl. Ross., 



1. p.' 272. 

 Engravings. Nov. Act. Petrop., t. 29. f. 2. ; Pall. Fl. Ross., 1. t. 23. ; and oi\r fig. 445. 



Spec. Char., Sf-c. Leaves obovate-oblong, perfectly smooth, 

 entire, sessile, tipped with a small mucro. Branchlets of 

 the panicle cylindrical. Bracteas linear, rather shorter 

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

 (Dec. Prod., ii. p. 544.) A native of Siberia, where, ac- 

 cording to Pallas, it grows in valleys at the foot of the 

 more lofty of the Altaian Mountains. The leaves are 

 gently astringent, and are used by the natives as tea; and 

 the shoots, which are long, tough, very straight, and of a 

 proper thickness, are used by the Cossacks for ramrods, 

 in the same manner as they do those of the cotoneaster. 

 The flowers are white, and disposed in a different man- 

 ner from those of most other plants of the genus. It was 

 introduced in 1774, by Dr. Solander; and is a very in- 

 teresting and handsome species, with a habit exceedingly dissimilar to that 

 of spiraeas in general. 



Sk 22. S. ^Rii£FO N LiA Smith. The White-Beam-tree-leaved Spiraea. 



Identification. Smith, in Rees's Cyclop., vol. 33. ; Bot. Reg , t. 1365. ; Dec. Prod., 2. p. 544. ; Don's 



Mill., 2. p. 520. 

 Engravings. Bot. Reg., t. 1365. ; and our figs. 446, 447. 



Spec. Char., cfc. Leaves elliptical, oblong, more or less lobed, toothed, pale, 

 villose beneath. Panicle villose. (Dec. Prod., ii. p. 544.) A native of 

 North America, principally on the north- 

 west coast ; introduced in 1827, by the un- 

 fortunate Douglas (see p. 125.); and pro- 

 ducing its numerous white flowers in June 

 and July. It forms 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 considered as a most valu- 

 able addition to British gardens. It is 

 perfectly hardy, will grow in any free soil, 

 and is easily propagated either by division 

 or by seeds, which it ripens in abundance. 



446 



447 



§ iv. Sorhdria Ser. 



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

 mountain ash, or other species of Pyrus belonging to the section Morbus. 



as 23. S. sorbifoYia L. The Sorbus-leaved Spiraea. 



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



Synonymes. S. pinnata Mcench Meth., 633. Dr. Lindley, in his Introduction to the Natural System, 



' p. 81. 83., mentions this species as one of a genus which he there names Schizonotus. 

 Engravings. Gmel. Fl. Sib, 3. p. 190. t.40. ; Schmidt Baum., 1. t. 58. ; Krauss, t. 94. ; Pall. Fl. Ross., 

 1. t. 88. and t. 24. ; and out Jig. 448. 



