Convolvulus Cneorum.*—Very pretty plant for a south wall; silvery foliage and white flowers.

Cornus (Dogwood).—Of these, alba and varieties, Kousa, florida, sanguinea (very ornamental in winter), Mas and m. variegata* (a very choice, variegated shrub), are the best.

Corylopsis pauciflora and C. spicata.—Both do well on a south wall.

Corylus (nut) Avellana purpurea.*—One of the most effective shrubs if used carefully.

Cotoneasters.—Of these, buxifolia, Simonsii, thymifolia,* microphylla,* horizontalis* (a species with peculiar spreading flat branches, producing a fine effect if grown on sloping banks), are the most noteworthy.

Hawthorn.—Cratægus are valuable hardy trees, flowering at the end of June to July; the scarlet form is brilliant.

CYTISUS PRÆCOX (Spring)

Cytisus (Broom).—Of this beautiful family, albus,* Ardoini,* biflorus,* decumbens,* nigricans, præcox,* purpureus,* scoparius and varieties,* are all splendid growers for dry, sunny situations.

Dabœcia.—Polifolia,* alba,* bicolor,* the Irish Heaths, are beautiful in small beds and rockeries.