* 
CESTRUM. 
by that name in most private col- | 
best | 
lections and nurseries, the 
known are C. speciosissimus, the 
crimson-flowered Torch Thistle, and 
its hybrids and varieties, the stems 
of which are erect and angular, 
and the flowers dark crimson; C. 
flagelliformis, the Creeping Cereus, 
the long round stems of which hang 
down like cords, and the flowers of 
which are pink ; and C. grandiflo- 
rus, the Night-blowing Cereus, the 
flowers of which are white and 
yellow. The Old Man’s head, or 
Monkey Cactus, Céreus senilis, is 
also becoming tolerably well known. 
All the kinds of Cereus only require 
greenhouse heat ; they should all be 
grown in loam mixed with pounded 
brick and lime-rubbish, in pots well 
drained with cinders; and they all 
require abundance of air and light. 
It is best to give them a season of 
rest when they have done flowering ; 
and this is done by removing them 
to a colder house, and withholding 
water. If, however, they are con- 
tinued in the same house in which 
they were flowered, the supply of 
water should be only lessened, and 
not stopped entirely. In other re- 
’ spects their culture resembles that 
of the other Cacti (see Ca’crus). 
CrerintTHE.—Boraginee. — Hon- 
eywort.——Hardy annuals, more cu- 
rious than beautiful, that will grow 
in any soil or situation ; and which, 
if sown in spring or summer, will 
generally come into flower in about 
six weeks from the time of sowing ; 
and if sown in autumn, will stand 
through the winter. 
[Ce'strum.—Solandcee.— Green- 
house shrubs, natives of the East 
Indies and South America. C. 
nocturnum, frequently called the 
night-smelling Jasmine, is a much 
esteemed species which blooms 
abundantly all summer, if planted 
in the open air in May, and fills the 
whole garden with its fragrance at 
night, though perfectly imodorous 
154 
| 
CHEIRANTHUS. 
during the day. It should be taker 
up in autumn, and if kept in a boy 
or pot, rather dry, may be easily 
preserved in a warm cellar untii 
spring.— Eb. ] 
CuaLk.—Carbonate of lime (see 
EartTus). 
Cuamasu'xus.—A kind of Poly- 
gala. 
CuamMamo‘Ly.—A species of Al- 
lium. 
CuarcoaL.—Powdered charcoal, 
sifted so as to have the particles not 
larger than those of #and, has been 
used in Germany for striking cut- 
tings in; and it is found superior to 
sand, as it supplies them with nour- 
ishment after they are rooted. 
Cuarpi'nta.—The new name for 
Xeranthemum orientale. 
Cuariwoo' pia. — Asphodélee. 
Stately plants, nearly related 
Dracena, the Dragon tree, grow- 
ing well in a mixture of lght loam 
and sandy peat, and requiring a cool 
part of the stove, or a very warm 
greenhouse. C. congésta has pale 
blue flowers, and is readily increased 
by cuttings planted under a hand- 
glass, without shortening the leaves. 
CuasteE Tree— Viiex A'gnus 
Castus.—A low shrub of no beauty, 
which will grow in any common 
soil. 
Cueira Ntuus.—Crucifere.—-The 
Wall-flower. Well-known _herba- 
ceous plants, which are much prized 
for the delightful odour of their 
flowers, which are produced from 
April to July. C. Cheiri, the com- 
mon Wall-flower, and its varieties, 
both double and single, are in gene- 
ral cultivation, growing in any com- 
mon soil; and the varieties are 
readily increased by cuttings. The 
best varieties are the double-blood, 
the double-striped, the double-yel- 
low or Polish, and the double- 
purple, all of which may be ob- 
tained from the nurserymen. There 
is also a kind, with very dark flow- 
ers and striped leaves, grown by 
