DESCRIPTIVE LIST OF FLOWERING SHRUBS. 469 
SPIRZA. 
Spiraa hypericifélia.—Hypericum-leaved Spirza, or, 
St. Peter’s Wreath.—This is a very elegant shrub, pro- 
ducing its numerous small white flowers in long garlands, 
upon the delicate curving branches of the plant. The 
bush, when in flower, has the appearance of being covered 
with a light fall of snow. The foliage is elegant; it is in 
flower in May and June; grows about four feet high; the 
extremities of the branches are sometimes winter-killed ; 
easily propagated by suckers, divisions of the root, or by 
layers, as all the species are. 
§. opulifélia, — Nine-Bark.—“ An ornamental native 
shrub, found from Canada to Georgia; from five to seven 
feet high, distinguished for the abundance of its showy 
heads of flowers, and for its conspicuous fruit. The stem 
is rugged, with loose, gray bark, easily detached, and fall- 
ing off. Flowers in hemispherical heads, on a short stalk, 
—each flower on a slender, downy thread; white, with a 
rose tinge.” 
S. salicifolia.—The Queen of the Meadows.—This is a 
very pretty native shrub, from two to four, and sometimes 
six, feet high, with terminal heads of neat, white, some- 
times rose-tinted flowers, in June and July. 
S. tomentésa.—Steeple Bush,— Hard-Hack.— This is a 
very common, leafy shrub, from two to five feet high, 
growing in wet ground, and distinguished in the flower- 
ing season for its long, tapering spire of purple flowers. 
A few years since, we ordered all the handsome Spirzas 
from England, excluding all that we possessed. When 
they came into flower, we found among them, this old, 
familiar country friend. “ Tt is, however, handsome when 
cultivated and pruned of the previous year’s stems, which 
disfigure it very much, when growing in the pastures. 
§. prunifélia pléna,—Double Plum-leaved Spirza.—This 
is one of the most desirable species or varieties of the Spi- 
