30 THE BOOK OF SHRUBS 
so large and they are produced in June. P. Lemoinei is 
a beautiful hybrid, elegant in growth, and attaining a 
height of four or five feet. It blooms in June and the 
flowers are white and about an inch in diameter. Boule 
d’ Argent is an extremely elegant form, bearing double 
white flowers; and Gerbe de Neige, another variety of 
P. Lemoinei, is extremely beautiful, being of moderate 
stature with slender growth, and free in blooming, the 
flowers of medium size and pure white; P. mexicanus 
is a desirable species, with an average height of six feet, 
the flowers two inches in diameter, pure white with 
conspicuous yellow stamens. 
Prunus.—The Plums remarkable for the beauty of 
their flowers, and especially desirable are all shrubs of 
moderate growth. They will thrive in any ordinary 
soil, and can be the most readily propagated by 
budding, as in the case of the plums grown for their 
fruits. 
Two only will be recommended and they are so 
meritorious that they should be grown in the smallest 
garden. The first is the Double Sloe or Blackthorn 
(Prunus spinosa fi. pl.). The growth is light and elegant, 
and the flowers are white, perfectly double, resembling 
small rosettes, and the second, P. triloba, a Chinese 
species of compact, erect growth, and remarkably free in 
blooming. The flowers are double, about an inch in 
diameter, and bright pink, and produced nearly the 
whole length of the shoots of the previous season. It 
should have a warm and conspicuous position in the 
shrubbery border, and it is very effective when grown 
against a wall and somewhat loosely trained. 
Rusus, or BramB_es.—The Brambles form a rather 
large group, and in extensive pleasure-grounds where 
wild gardening receives attention, half a dozen or so 
may be planted; but for the majority of gardens Rubus 
deliciosus (Rocky Mountain Bramble) and R. odoratus 
