D. ALTAICA.--Siberia, 1796. Though rare in gardens, this is a pretty
and neat-foliaged species, and bears white flowers in abundance. It
wants a warm corner and dry soil.

D. BLAGAYANA.--Styria, 1872. This is still rare in cultivation, but it
is a very desirable species, bearing ivory-white highly-fragrant
flowers. For the alpine garden it is particularly suitable, and though
growing rather slowly thrives well in good light soil.

D. CHAMPIONI
(_syn D. Fortunei_), from China, is a rare and pretty species, bearing
lilac flowers in winter, and whilst the shrub is leafless. It does best
in a warm situation, such as planted against a wall facing south.

D. CNEORUM.--Garland Flower. South Europe, 1752. This is a charming
rock shrub, of dwarf, trailing habit, with small glossy-green leaves,
and dense clusters of deep pink, deliciously-fragrant flowers.

D. FIONIANA is of neat growth, with small, glossy, dark leaves, and
pale rose-coloured flowers. Its sturdy, dwarf habit, constant verdure,
and pretty sweet-scented flowers, should make this species a favourite
with cultivators. Known also as D. hyemalis.

D. GENKWA.--Japanese Lilac. Japan, 1866. This is a rare and beautiful
species, of recent introduction, with large lilac-tinted,
sweetly-scently flowers.

D. LAUREOLA.--Spurge Laurel. This is not, in so far at least as flowers
are concerned, a showy species, but the ample foliage and sturdy habit
of the plant will always render this native species of value for the