198 FLOWERS OF GARDEN AND GREENHOUSE 
which the characters of the two are happily combined are now well known 
in gardens. They have pink, red, pale pink, and variegated flowers. 
R. oporatissiMa (fragrant). Stems erect, 12 to 20 inches high, 
rough, sometimes branched. Leaves narrow-lance-shaped or awl-shaped. 
Flowers creamy white, pale yellow, or rosy, an inch long, sweet-scented, 
in many-flowered cymes; June and J uly. 
R. VERSICOLOR (changeable). Stems erect, branched, 2 feet. Leaves 
lance-shaped, sheathing, with fringed edges. Flowers red, white within 
with the exception of a red margin, the colour from which gradually 
spreads all over the interior; in terminal umbels; fragrant at evening; 
May to September. . 
The suggestions to be given under this head apply to 
the closely-allied genera of Rochea and Crassula, which 
are alike in general structure and habitat. They should all be grown 
in pots, for they need to be wintered in a greenhouse and kept dry. 
The soil that suits them best is a compost of sandy loam, three parts, to 
one part each of well-rotted manure, leaf-mould, and small brick rubbish. : 
They are propagated by seeds, but chiefly from cuttings taken in July. 
These should be laid in the sun for a couple of days at least before 
potting, in order to allow the cut portion to dry. This accomplished, 
insert in three-inch pots and place in the greenhouse in a dry and sunny 
position. Here they should remain until the following spring, when, as 
soon as growth commences, they should be shifted into larger (five-inch) 
pots. When again well established, check the growth by nipping out 
the growing point, and withhold water for a couple of days. This 
treatment produces a series of lateral shoots which will all bear flowers. 
By further stopping, these may each be made to send out branches until 
a bush has been formed sufficiently large to satisfy the grower, but with 
each stage in this process a shift should be made to a correspondingly 
larger pot, and the shoots must be tied out to neat little sticks. After 
flowering each shoot requires to be cut back until not more than two 
inches long, and when growth has again started cut back the longest 
roots and re-pot, giving them fresh sojl but no larger pots. Water should 
now be given sparingly, only in sufficient quantity to keep the soil moist 
until the new roots have got well hold of it. During the growing peri 
they should have sufficient water, but it needs to be given with care, 
and the drainage must be perfect. During winter it is essential that 10 — 
more water than suffices to prevent the flesh shrivelling be given to them. 
Description of A single-branched stem of Rochea coccinea with two 
Fiate%. flower heads. These are reduced by about one-fourth from 
the natural size. At F ig. 1 is shown an enlarged section of a flower. 
Cultivation. 
