FLOWERING TREES AND SHRUBS 183 



S. japonica (syns S. callosa and S. Fortimei). — 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. lmvigata (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 race- 

 mose panicles, and produced in May. 



S. Lindlevana. — 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, hand- 

 some specimen, which 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 feet high, and is best known under 

 the name of S. confusa. 

 v S. prunifolia. — China and Japan, 1845. A twiggy- 



