CHAP. XLII. ROSA‘CEZ. SPIRAE‘A,. 731 
p. 544.) This species, in its mode of growth, resembles S. salicifdlia, 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. 
2 20. S.tezviea‘ta IL, The smooth-leaved Spirza. 
Identification. Lin. Mant., 244. ; Camb. Monog.; Dec. Prod., 2. p. 544.3; Don’s Mill, 2. p. 519. 
Synonymes. S. altaicensis Laxm. 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 our fig. 445. 
Spec. Char.,§c. Leaves obovate-oblong, perfectly smooth, ES 
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- <4, 
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 spirzeas in general. 

% 22. S. Ariaro ‘Lia Smith. The White-Beam-tree-leaved Spirza. 
a ig a 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., §c. Leaves elliptical, oblong, more or less lobed, toothed, pale, 
villose beneath. Panicle villose. (Dec. Prod., ii. p. 544.) A native of 
is North America, principally on the north- ¢ 
west coast; introduced in 1827, by the un- © 
, fortunate Douglas (see p. 125.); and pro- 
zs 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. 

§ iv. Sorbdria Ser. 
Sect. Char. Leaves pinnate, resembling, as the name implies, those of the 
mountain ash, or other species of Pyrus belonging to the section Sérbus. 
% 23, S. sorBiFo‘LIA L. The Sorbus-leaved Spirza. 
Identification. Lin. Sp., 702. ; Camb. Monog. ; Dec. Prod. 2. p. 545. 
Synonymes. S. pinnata Meench 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, F. Sib., 3. p. 190. t.40. ; Schmidt Baum., 1. t. 58.; Krauss, t. 94. ; Pall. Fl. Ross., 
1. t. 88. and t. 24. ; and our fig. 448. : 
