78 THE BOOK OF GARDEN DESIGN 
and worthy in many cases of bettertreatment. A 
beautiful little dwarf shrub is P. triloba fi. pl., with 
large blush flowers, changing with age to pure white. 
It is worth almost any consideration to secure a small 
representative collection of this family for our gardens. 
P. pissardi. 
Pyrus (Cydonia) Japonica.—A well-known shrub, pro- 
ducing a profusion of vivid scarlet blossoms over an 
extended period. The fruit, which appears in autumn, 
is of considerable size. A variety alba, with white 
flowers, should also be grown. 
Philadelphus.—Mock Orange. Well-known  old- 
fashioned shrubs, the syringa of the cottage gardens. 
They deserve an open, sunny position, when they will 
form really handsome bushes, covered with a wealth 
of sweetly scented blossoms. P. coronarius is the common 
variety, and in the same section we have aureus with 
golden leaves; primuleflorus with double white flowers ; 
and manus, a dwarf form, which, however, is a shy 
bloomer. P. grandiflorus has much finer flowers than 
coronarius, and is but slightly scented, an advantage 
when the branches are used for indoor decoration, the 
common form being almost too powerful in a room, 
P. microphyllus is an excellent dwarf variety, forming a 
compact bush about 3 feet high. 
Viburnum.—Guelder Rose. The beautiful snowball- 
like flowers of this shrub are extremely ornamental, and 
it deserves a worthy place in the garden. Sterile, the 
cultivated form of the native V. opulus, grows to a good 
height, and may be planted well back in the mixed 
shrubbery. V. plicatum is somewhat different in habit, 
producing continuous sprays of large, white blossoms. 
Stuartia.—A deciduous shrub bearing flowers some- 
thing like the Camellia. 8. pseudo-Camellia has creamy- 
white blossoms with yellow stamens. S. virginica 
forms a handsome bush, the flowers the same colour 
