PYRUS. 
and should be grown in sandy peat. 
It is propagated by layers. 
Pyre'rurum.— Composite. — Fe- 
verfew. Most of the species are 
hardy perennials, which only require 
planting in the open garden and the 
usual treatment of perennial plants. 
According to the latest arrange- 
ments of botanists, the Chinese 
Chrysanthemums are now included 
in the genus Pyrethrum. 
Py‘roxta. — Rosdicee. — Winter- | 
A pretty little shrub, one) 
green. 
species of which, P. rotundifolia, 
is found wild in Sussex. 
Py‘rus.—Rosdcee.—The Apple 
and Pear Trees. 
kinds of Crabs and Pears are very 
ornamental from their blossoms, in- 
dependently of the utility of the fruit 
of some of the species. The orna- 
mental kinds are all low trees, ad- 
mirably adapted for the lawn or the 
shrubbery ; they are dll of easy cul- 
ture in any common garden soil ; 
and they are propagated by grafting 
the finer on the more common kinds. 
To thrive and look well, however, 
they require an airy situation, and 
not to be crowded among other 
trees. Most of the species, and es- 
pecially the Crabs, are very liable 
to be attacked by insects in the leaf- 
ing and flowering season ; and they 
should then be carefully watched, 
and the caterpillars picked off as 
soon as they are visible. Among 
the kinds most worthy of notice are 
the following: Py‘rus spectabilis, 
the Chinese Crab or Garland-flow- 
ering Wild Apple, producing the 
most showy flowers of the whole 
genus in May, and as hardy as the 
common Crab or Wild Pear. P. 
coronaria, the Sweet-scented Crab, 
with large and beautiful pink blos- 
soms, highly fragrant, as is the first. 
P. c. angustifolia, the narrow- 
leaved sweet-scented Crab, with 
blossoms as beautiful as the former, 
and with the leaves sub-evergreen. 
This, and the two preceding kinds, 
29* 
A 
The different | 
341 
= 
PYRUS. 
_——— 
have the fruit green when ripe, and 
fragrant, but it is not good to eat. 
g g 
Py‘rus baccata and P. prunifolia, 
the two kinds of Siberian Crab, have 
very showy blossoms, and small red 
or yellow fruit, useful in cookery. 
These are the principal ornamental 
species of the Crab or Apple kind, 
unless we except one, the Moscow 
or Transparent Crab, Py‘rus Astra- 
canica, which has fruit almost as 
large as a golden Pippin, wax-col- 
oured, and almost transparent when 
ripe. Though commonly cultivated 
for its fruit, as useful for the table, 
it well deserves a place on the lawn 
as an ornamental plant, from the 
extraordinary beauty of the Crabs. 
The ornamental Pears are the fol- 
lowing: P. salvifolia, which has 
woolly leaves like those of the Sage, 
and, like all the Pears, white flow- 
ers ; this peculiarity, independently 
of other marks, distinguishing them 
from the Apples, which have always 
reddish flowers. P. amygdalefor- 
mis is another ornamental species, 
which has silvery-white leaves, and 
fruit shaped like that of the Almond; 
and to these may be added P. ele- 
agnifolia, which has long narrow 
white leaves like those of the Ele- 
dgnus; P. salicifolia, with long, 
narrow, silky leaves, like those of 
the willow ; and P. nivalis, which 
has round leaves of a snowy white- 
ness. All these species have small 
green fruit not good to eat ; but the 
trees are most ornamental from 
their shape and the singular colour 
of their foliage. The following 
kinds of Pyrus belong to the section 
Atria. P. A‘ria, and its varieties, 
P. A. angustifolia and P. A. créti 
ca, the White Beam Tree, are ad 
mired for the beauty of their leaves 
which are green above and white 
beneath, and for the bright scarlet 
fruit which they produce in great 
abundance. P. vestita, the Nepal 
White Beam Tree, is a rare and 
beautiful object, as its leaves, which 
