54 HARDY ORNAMENTAL 



C. Crus-galli horrida, C. orientalis, and C. tomentosum 

 (syn G. punctata). To a lesser or greater extent, the various 

 species and varieties of Thorn are of great value for the 

 wealth and beauty of flowers they produce, but the above 

 are, perhaps, the most desirable in that particular respect. 

 They are all of free growth, and, except in waterlogged 

 soils, thrive well and flower freely. 



Cydonia. See Pyrus. 



Cytisus (Leguminosae). See Genista, Spartium, 

 and Laburnum. 



Cytisus albtjs. — White Spanish Broom. Portugal, 

 1752. This is a large-growing shrub of often 10 feet in 

 height, with wiry, somewhat straggling branches, and 

 remarkable for the wealth of pure-white flowers it pro- 

 duces. In May and June, if favourably situated, every 

 branch is wreathed with small white flowers, and often to 

 such an extent that at a short distance away the plant 

 looks like a sheet of white. Being perfectly hardy and 

 of very free growth in any light soil, and abundantly 

 floriferous, this handsome shrub is one of particular value 

 in ornamental planting. By placing three or five plants 

 in clump-fashion, the beauty of this Broom is greatly 

 enhanced. 



C. albus incabnatus (syn G. incamatus) resembles C. 

 purpureus in its leaves and general appearance, but it is 

 of larger growth. The flowers, which are at their best 

 in May, are of a vinous-rose colour, and produced 

 plentifully. 



C. Akdoini, from the maritime Alps, 1867, is a charm- 

 ing rock shrub with decumbent stems, hairy leaves, and 

 bright-yellow flowers. 



C. bifloeus {syn C. elongatus). — Hungary, 1760. This is 

 a dwarf, spreading, twiggy bush, of fully a yard in height. 

 Leaves trifoliate, clothed beneath with closely adpressed 



