ieties of the above, the latter especially being one of the most
ornamental-berried shrubs in cultivation.

C. TANACETIFOLIA.--Tansy-leaved Thorn. Greece, 1789. This is a very
late-flowering species, and remarkable for its Tansy-like foliage. It
is of unusually free growth, and in almost any class of soil, and is
undoubtedly, in so far at least as neatly divided leaves and wealth of
fruit are concerned, one of the most distinct and desirable species of
Thorn.

Other good species and varieties that may just be mentioned as being
worthy of cultivation are C. apiifolia, C. Crus-galli horrida, C.
orientalis, and C. tomentosum (_syn C. punctata_). To a lesser or
greater extent, the various species and varieties of Thorn are of great
value for the wealth and beauty of flowers they produce, but the above
are, perhaps, the most desirable in that particular respect. They are
all of free growth, and, except in waterlogged soils, thrive well and
flower freely.

CYTISUS.

CYTISUS ALBUS.--White Spanish Broom. Portugal, 1752. This is a
large-growing shrub of often 10 feet in height, with wiry, somewhat
straggling branches, and remarkable for the wealth of pure-white
flowers it produces. In May and June, if favourably situated, every
branch is wreathed with small white flowers, and often to such an
extent that at a short distance away the plant looks like a sheet of
white. Being perfectly hardy and of very free growth in any light soil,
and abundantly floriferous, this handsome shrub is one of particular
value in ornamental planting. By placing three or five plants in
clump-fashion, the beauty of this Broom is greatly enhanced.

C. ALDUS INCARNATUS (_syn C. incarnatus_) resembles C. purpureus in its
leaves and general appearance, but it is of larger growth. The flowers,
which are at their best in May, are of a vinous-rose colour, and
produced plentifully.

C. BIFLORUS (_syn C. elongatus_).--Hungary, 1804. This is a dwarf,
spreading, twiggy bush, of fully a yard high. Leaves trifoliolate,
clothed beneath with closely adpressed hairs, and bright yellow,
somewhat tubular flowers, usually produced in fours.

C. DECUMBENS.--A charming alpine species, of low, spreading growth,
bright-green three-parted leaves, and bearing axillary bunches of large
yellow, brownish-purple tinted flowers. A native of the French and
Italian Alps, and quite hardy.

C. NIGRICANS.--Austria, 1730. Another beautiful species, with long,
erect racemes of