dark reddish-purple flowers.

S. LAEVIGATA (_syns S. altaicensis_ and _S. altaica_).--Smooth Spiraea.
Siberia, 1774. A stout, spreading shrub about a yard high, with large,
oblong-lanceolate, smooth, and stalkless leaves. The white flowers are
arranged in racemose panicles, and produced in May.

S. LINDLEYANA.--Lindley's Spiraea. Himalayas. A handsome, tall-growing
species, growing from 6 feet to 8 feet high, with very large pinnate
leaves, and pretty white flowers in large terminal panicles. It is the
largest-leaved Spiraea in cultivation, and forms a stately, handsome
specimen, and produces its showy flowers in great quantities. Flowering
at the end of summer.

S. MEDIA (_syns S. confusa_ and _S. oblongifolia_).--Northern Asia, etc.
The pure white flowers of this species are very freely produced in
corymbs along the shoots of the previous season during the months of
June and July. The lanceolate-elliptic leaves are serrate, or the
smaller ones toothed near the apex only. Within the past few years the
species has been brought into prominence for forcing purposes, for which
it is admirably suited. It forms an upright, branching bush usually
about 3 ft. high, and is best known under the name of S. confusa.

S. PRUNIFOLIA.--China and Japan, 1845. A twiggy-branched shrub growing 4
feet or 5 feet high, with oval, Plum-like leaves, and white flowers.
There is a double-flowering variety named S. prunifolia flore-pleno,
which is both distinct and beautiful.

S. ROTUNDIFOLIA.--Round-leaved Spiraea. Cashmere, 1839. A
slender-branched shrub, having downy shoots, and round, blunt leaves,
flowering in July.

S. SALICIFOLIA.--Willow-leaved Spiraea. Europe, and naturalised in
Britain. An erect-growing, densely-branched shrub, with smooth shoots,
which spring usually directly from the ground. Leaves large, lanceolate,
smooth, doubly serrated, and produced plentifully. Flowers red or
rose-coloured, and arranged in short, thyrsoid panicles. It flowers in
July and August. S. salicifolia carnea has flesh-coloured flowers; S.
salicifolia paniculata has white flowers; and S. salicifolia grandiflora
has pink flowers as large again as the type. S. salicifolia alpestris
(Mountain Spiraea) grows fully 2 feet high, with lanceolate,
finely-toothed leaves, and loose, terminal panicles of pink or red
flowers. From Siberia, and flowering in autumn. S. salicifolia latifolia
(_syn S. carpinifolia_), the Hornbeam-leaved Spiraea, is a
white-flowe