Part 32

S. FISSA.--Split-leaved Spiraea. Mexico, 1839. A stout, erect-growing shrub, about 8 feet high, with rather small leaves, angular, downy branches, and long, loose, terminal panicles of small and greenish-white flowers. The leaves are wedge-shaped at the base, and when young have the lateral incisions split into a pair of unequal and very sharp teeth. Flowering in May and June. In the south and west of England it thrives best.

S. HYPERICIFOLIA (syn S. flagellata).--Asia Minor, 1640. A wiry twiggy shrub, fully 4 feet high, with entire leaves, and small, white flowers produced in umbels at the tips of the last year's shoots. It is a pretty and desirable species.

S. JAPONICA (syns S. callosa and S. Fortunei).--Japanese Spiraea. China and Japan, 1859. This is a robust species about a yard high, with large lanceolate leaves, and small, rosy-red flowers arranged in corymbose heads. Flowering at mid-summer. There are several fine varieties of this species, including S. japonica alba, a compact bush about a foot high with white flowers; S. japonica rubra differs from the type in having dark red flowers; S. japonica splendens, is a free-flowering dwarf plant, with peach-coloured flowers and suitable for forcing; and S. japonica superba, has dark rose-red flowers. S. Bumalda is a closely allied form, if not a mere variety of S. japonica. It is of dwarf habit, with 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-flowered variety, with leaves resembling those of the Hornbeam. From North America.

S. SORBIFOLIA.--Sorbus-leaved Spiraea. Siberia, 1759. A handsome, stout species, 4 feet high, with large, pinnate, bright green leaves, and small, white, sweetly-scented flowers produced in thyrsoid panicles.

S. THUNBERGII.--Thunberg's Spiraea. Japan. The white flowers of this species smell somewhat like those of the Hawthorn, and are freely produced on the leafless, twiggy stems, in March or early in April, according to the state of the weather. They are borne in axillary clusters from buds developed in the previous autumn, and are very welcome in spring, long before the others come into bloom. The bush varies from one to three feet high, and is clothed with linear-lanceolate, sharply serrated leaves.

S. TOMENTOSA.--Tomentose Spiraea. North America, 1736. This species grows 2 feet or 3 feet high, has rusty tomentose shoots and leaves, and large, dense, compound spikes of showy red flowers. Flowering in summer.

S. TRILOBATA (syn S. triloba).--Three-lobed Spiraea. Altaian Alps, 1801. This is a distinct species with horizontally arranged branches, small, roundish, three-lobed leaves, and white flowers arranged in umbel-like corymbs. It flowers in May, and is quite hardy.

S. UMBROSA (Shady Spiraea) and S. EXPANSA (Expanded-flowered Spiraea), the former from Northern India and the latter from Nepaul, are well suited for planting in somewhat shady situations, and are very ornamental species. The first mentioned grows about a foot high, with rather large leaves, and cymes of white flowers on long slender footstalks; while S. expansa has pink flowers, and lanceolate and coarsely serrated leaves.

There are other valuable-flowering kinds, such as S. capitata, with ovate leaves and white flowers; S. pikowiensis, a rare species with white flowers; S. cuneifolia, with wedge-shaped leaves and panicles of pretty white flowers; and S. vacciniaefolia, a dwarf-growing species, with small ovate, serrulated leaves, and showy, pure white flowers. S. betulifolia and S. chamaedrifolia flexuosa are worthy forms of free growth and bearing white flowers.

STAPHYLEA.

STAPHYLEA COLCHICA.--Colchican Bladder Nut. Caucasus. This is a very distinct shrub, about 6 feet high, with large clusters of showy white flowers. Being quite hardy, and very ornamental, this species is worthy the attention of planters.

S. PINNATA.--Job's Tears, or St. Anthony's Nut. South Europe. This is a straggling shrub, from 6 feet to 8 feet high, with white, racemose flowers, succeeded by bladder-like capsules.

S. TRIFOLIA.--North America, 1640. This is distinguished by its larger white flowers and trifoliolate leaves. It is the American Bladder Nut, but, like the latter, can hardly be included amongst ornamental plants.

All the Bladder Nuts grow freely in good light dampish loam.

STAUNTONIA.

STAUNTONIA HEXAPHYLLA.--China and Japan, 1876. This evergreen twining shrub is not to be generally recommended, it requiring wall protection even in southern England. The leaves are deep green and pinnate, while the greenish-white flowers are fragrant, and produced in the beginning of summer.

STUARTIA.

STUARTIA PENTAGYNA (syn Malachodendron ovatum).--North America, 1785. This differs only from the S. virginica in having five distinct styles, hence the name. Under very favourable circumstances this is the taller growing species, and the leaves and flowers are larger.

S. PSEUDO-CAMELLIA (syn S. grandiflora).--Japan, 1879. This is of recent introduction, and differs from the others in the flowers being rather larger, and of a purer white, and supplied with yellow instead of red stamens. It is quite hardy in Southern England and Ireland at least.

S. VIRGINICA (syn S. marylandica).--North America, 1743. This is a handsome free-growing shrub, of often 10 feet in height, with large, creamy-white flowers, that are rendered all the more conspicuous by the crimson-red stamens. The flowers--like those of a single Rose, and fully 2-1/2 inches across--are produced in May. Quite hardy, as many fine specimens in some of our old English gardens will point out.

Though, perhaps, rather exacting in their requirements, the Stuartias may be very successfully grown if planted in light, moist, peaty earth, and where they will be screened from cold, cutting winds.

STYRAX.