LIST OF PLANTS 105 
a bell-glass until a union is effected, being gradually 
hardened off and inured to full exposure of the air and 
the greenhouse. C. puniceus will strike and grow freely 
from cuttings plunged in bottom heat until rooted. 
Criivia (Imantophyllum).—These handsome green- 
house and window plants are increased by division when 
repotting and by seed sown in March in a temperature 
of about 75 degrees. 
Cospaa.—The green-leaved kind is reared by sowing 
new seed in gentle bottom heat in March, the variegated 
variety by cuttings of young shoots when they break 
into growth in spring, either being covered with a bell- 
glass or plunged in slight bottom heat in a close case. 
Co.eus.-—Old plants that have been preserved 
through the winter in a warm greenhouse will supply 
suitable shoots for cuttings in March; they should 
have the bottom leaves removed, be cut through just 
below a joint, inserted in pots of loam, leaf-mould, and 
sand, plunged in bottom heat in a close, warm frame 
until rooted. 
CoLeworts.—These prove of value for early use as 
immature Cabbage if sown in July and the seedlings 
planted in ground cleared of other crops. 
Co.uinsiA.-—Favourite annuals which should be sown 
in the open border in March or April and be thinned out 
to about 2 inches apart. 
CoNIFERS.—These are mostly reared from seed sown 
in pans of compost placed in a cold frame about March. 
Many, such as Cupressus, Juniperus, Retinosporas, 
Thuias, Cryptomerias, and Wellingtonias, can be suc- 
cessfully raised from cuttings of side-branches, 4 to 
6 inches long, firmly planted in sandy, well-drained 
soil, with a thin layer of pure sand on the surface, in 
