WALLFLOWER. 
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brighter crimson than those of C. ruber. There is, 
however, a white-flowerecl variety, and a dwarf dense- 
growing one called nana. 
CERASTIUM tomentosum. — This beautiful chick- 
weed has long been known as an edging and carpet 
plant in the flower border and rockery. It is readily 
distinguished by its dense masses of silvery-white 
narrow leaves. The pure white flowers appear during 
the summer months, and enhance the general beauty 
of the plant. A well-drained garden soil suits this 
species well, and it may be increased by division in 
the early autumn, or by cuttings inserted in sandy 
soil under glass in spring. 
CHEIRANTHUS Cheiri ( Wallflower ). — There are 
now many fine varieties, some being deep blood-red 
and maroon, and others purple, brown, orange, yellow, 
and intermediate shades. Besides the single-flowered 
forms, there are also many double ones with different 
shades of colour. When massed in beds or bold 
groups, on walls, ruins, and rough places, the Wall- 
flower adds a charm to the garden in the spring. To 
secure the best results seeds should be sown in the 
open air from March to May. The plants should be 
in their flowering quarters by the end of September, 
and by selecting early and late varieties, can be had 
in bloom from Christmas to March and April. Other 
kinds of Wallflower occasionally seen are G. Marshalli, 
a supposed hybrid with orange-yellow flowers ; and C. 
mutabilis, with blossoms varying from creamy-yellow 
to purple. This species has recently been crossed 
with some garden forms of C. Cheiri, and has produced 
a hybrid called kewensis, which is peculiar for having 
