, with narrow
leaves; R. Pseud-Acacia aurea, a conspicuous but not very constant
golden leaved form; R. Pseud-Acacia inermis, of which there are weeping,
upright, and broad-leaved forms, has narrow leaves that are glaucous
beneath, and the characteristic spines of the species are wanting or
rarely well developed. R. Pseud-Acacia monophylla is very distinct, the
leaves being entire instead of pinnate; while R. Pseud-Acacia crispa has
curiously-curled foliage. Then there is the peculiar R. Pseud-Acacia
tortuosa, of ungainly habit; R. Pseud-Acacia umbraculifera, with a
spreading head; R. Pseud-Acacia sophoraefolia, the leaves of which
resemble those of Sophora japonica; and R. Pseud-Acacia amorphaefolia,
with very large foliage when compared with the parent tree. The above
may be taken as the most distinct and desirable forms of the False
Acacia, but there are many others, such as R. Pseud-Acacia colutoides,
R. Pseud-Acacia semperflorens, and R. Pseud-Acacia Rhederi, all more or
less distinct from the typical tree.

R. VISCOSA (_syn R. glutinosa_).--Clammy Locust. North America, 1797.
This is a small-growing tree, and readily distinguished by the clammy
bark of the younger shoots. Flowers in short racemes, and of a beautiful
rose-pink, but varying a good deal in depth of tint. It is a valuable
species for ornamental planting, and flowers well even in a young state.

Few soils would seem to come amiss to the Acacias, but observations
made in many parts of the country conclusively prove that the finest
specimens are growing on light, rich loam overlying a bed of gravel.
They are propagated from seed, by layers, or by grafting.

ROSA.

ROSA ALBA.--This is a supposed garden hybrid between R. canina and R.
gallica (1597). It has very glaucous foliage, and large flowers, which
vary according to the variety from pure white to rose.

R. REPENS (_syn R. arvensis_).--Field Rose. Europe (Britain). This
species bears white flowers that are produced in threes or fours, rarely
solitary. The whole plant is usually of weak and straggling growth, with
shining leaves.

R. BRACTEATA (Macartney Rose), R. PALUSTRIS (Marsh Rose), and R.
MICROPHYLLA (small-leaved Rose), belong to that section supplied with
floral leaves or bracts, and shaggy fruit. They are of compact growth,
with neat, shining leaves, the flowers of the first-mentioned being rose
or carmine, and those of the other two pure white.

R. CANINA.--Dog Rose. Our native Rose