COCCULUS CAROLINUS.--This is a half hardy, twining shrub, of free
growth when planted by a tree stem in a sheltered wood, but with by no
means showy flowers; indeed, it may be described in few words as a
shrub of no great beauty nor value.

C. LAURIFOLIUS, from the Himalayas and Japan, is even less hardy than
the above, although, used as a wall plant, it has survived for many
years in the south and west of England. The foliage of this species is
neat and ornamental, but liable to injury from cold easterly winds.


COLLETIA.

COLLETIA CRUCIATA (_syn C. bictonensis_).--Chili, 1824. With flattened
woody branches, and sharp-pointed spines which take the place of
leaves, this is at once one of the most singular of hardy flowering
shrubs. It forms a stout dense bush about 4 feet high, and bears
quantities of small white flowers, which render the plant one of great
beauty during the summer months.

C. SPINOSA.--Peru, 1823. This species grows fairly well in some parts
of England and Ireland, and is a curious shrub with awl-shaped leaves,
and, like the other members of the family, an abundant producer of
flowers. It thrives best as a wall plant, and when favourably situated
a height of 12 feet is sometimes attained.


COLUTEA.