108 CATALOGUE OF GREEN-HOUSE PLANTS. 



Cistu8. Rock Rose. A half-hardy dwarf shrub, of which 

 there are upward of twenty species, natives of Europe ; the 

 flowers, which are white and purple, multiply abundantly in 

 May and June. 



Citrus. Orange, Lemon, &c. This genus embraces the 

 Orange, Lemon, Lime, Shaddock, &c., of each, of which 

 there are several varieties. They are indispensable in a good 

 green-house, for their handsome evergreen foliage, and odor- 

 iferous blossoms, and beautiful golden fruit, which by careful 

 cultivation may be kept constantly on the plants. Those 

 varieties with variegated, yellow, and green foliage, are very 

 generally admired. 



Clethra arborea variegata. A fine sweet-scented shrub, 

 producing spikes of white downy blossoms ; the leaves are 

 oblong-and serrated, having a gold-coloured edge. 



Correct. A genus of dwarf shrubby plants, consisting of 

 several species, producing their orange, white, red, and green 

 blossoms frequently in the winter, and sometimes in May or 

 June. 



Coronilla glauca. A desirable green-house dwarf shrub, 

 yielding numerous sweet-scented yellow flowers in clusters, 

 from January to April. There are other varieties which 

 jlossom in summer. 



Cotyledon orbiculata. Cape Navelwort. A succulent plant, 

 producing finger-like suckers and successional joints, which 

 blossom annually ; the curiosity of- the foliage, however, is 

 its chief recommendation. 



Crassula A species of dwarf succulent plants, producing 

 scarlet and variegated wax-like flowers from April to June 

 or July. 



Crinam amabile. A large beautiful flowering bulb, of 

 which there are several species, chiefly calculated for hot- 

 house culture, where some varieties frequently yield three 

 stems of beautiful crimson, purple, or white flowers in a 

 year. 



Cypripedium insignis. This species is known by the name 



