112 GARDEN FLOWERS. 



blue, in June ; Oregon ; 1827. C. pulchella (pretty) ; half- 

 hardy annual ; 6 inches ; flowers blue, white, and yellow, in 

 June; California; 1831. 



Cleiococca. [Linaceae.] Half-hardy perennial, allied to 

 Linum. Propagated by seeds and division. Light loam 

 and peat 



C. te7iuifolia (slender-leaved) ; 3 inches ; flowers purple, in 

 July; Australia; 1837. 



Clover. See Trifolium. 



Clove-Pink. See Dianthus. 



CoB^A. [Polemoniaceae.] Greenhouse or half-hardy 

 rapid-growing climbers, covering a large space during the 

 summer season with their herbaceous stems, which, in a 

 greenhouse or conservatory, retain their foliage, and continue 

 to blossom through the winter. They are very useful as well 

 as ornamental out doors during the summer season ; but in 

 such situations are killed by the first frost. When grown in 

 a greenhouse, they generally ripen plenty of seeds, by which 

 they are best propagated ; though they may be increased by 

 cuttings. They require a rich loamy soil. 



C. 7nacrosteinma (long-stamened) ; greenhouse climbing per- 

 ennial ; 20 feet ; flowers yellowish-green, in September ; Guaya- 

 quil ; 1839. ^- scandens (climbing); greenhouse climbing per- 

 ennial ; 20 feet ; flowers purple, in July ; Mexico ; 1792. C. sti- 

 pularis (stipuled) ; greenhouse climbing perennial ; 20 feet ; 

 flowers yellow, in August ; Mexico ; 1839. 



Cockscomb. See Celosia. 



CocKSPUR Thorn. See Crataegus. 



Ccelestina. [Compositae.] A small family, of which 

 C. ageratoides, formerly Ageratum ccelestinum^ is the best. 

 They require a greenhouse or frame in winter, and bloom 

 well in the border in summer. The species are C. agera- 

 toides and cosrulea. 



