work, where it can obtain both shade from the midday sun and
moisture. It is readily increased by cutting the roots into pieces
about 1-1/2 in. long, and replanting them where they are intended to
bloom, putting 1 in. or so of sand round them. They flower in May.
Height, 1-1/2 ft.

Desfontania Spinosa.--A fine, evergreen wall shrub with holly-like
leaves, and long, pendulous scarlet and orange flowers in June. It
grows best in a compost of loam, peat, and sand, with a south or west
aspect. It is propagated by cuttings under glass. Height, 10 ft.

Desmodium Canadense.--This is a fine border hardy perennial, producing
long racemes of rosy-purple flowers in June or July. It prefers a soil
of sandy loam and peat, and may be increased by seed or by cuttings
planted in sand and subjected to heat. Height, 4 ft.

Desmodium Pendulaeflorum.--A hardy evergreen shrub, flowering in July.
It thrives in sandy loam and peat. Cuttings planted in sand with a
little bottom-heat and under glass will strike. Height, 6 ft.

Deutzia.--A beautiful conservatory shrub, bearing in spring a large
quantity of flowers resembling the snowdrop. A peaty soil suits it. It
is pretty hardy. Height, 3 ft.

Devil-in-a-Bush.--_See_ "Nigella."

Dianthus.--Very beautiful and fragrant flowers. The genus embraces
Carnations, Pinks, Picotees, and Sweet Williams. The soil most
suitable for them is a light, loamy one, mixed with a little rotten
dung and sand. It is well to confine the rarer kind to pots, so as
the better to protect them in winter. They are propagated by layers,
cuttings, or division of roots. If the cuttings are taken about the
middle of June, and placed under glass on a gentle hotbed, they will
be ready in about three weeks to plant out in the open. The annuals
and biennials merely require sowing where they are intended to bloom.
Flower in July. Height, 1-1/2 ft. to 2 ft.

Dictamnus (_Burning Bush_).--_See_ "Fraxinella."

Dielytra Spectabilis (_Venus's Car, Bleeding Heart, or Lyre
Flower_).--One of the most elegant hardy perennials for forcing
for table decorations, or cutting for vases. The graceful, pendent
branches are laden with beautiful red or purple heart-shaped flowers;
these, combined with the delicate green of the foliage, give them a
conspicuous place among plants. Out of doors in summer, among shrubs
or herbaceous plants, they are exceedingly attractive. Let them be
planted in tufty groups in a warm, sheltered border of rich,