90 GARDEN FLOWERS. 



Cardai\iine. [Cruciferae.] Hardy perennials, growing 

 in common moist soil. Increased by division. 



C. amara (bitter) ; aquatic ; i foot ; flowers white, in May ; 

 Britain. C. asarifolia (asarum-leaved) ; i foot ; flowers white, 

 in June; Italy; 1710. C. bellidifolia (daisy-leaved); i foot; 

 flowers white, in May ; Scotland. C. bellidifolia alpina (Al- 

 pine) ; I foot ; flowers white, in May ; Austria ; 1658. C. cheli- 

 do7iia (celandine-leaved) ; i foot ; flowers white, in June ; Italy; 

 1739. ^- g^^ii(^^ (milky-green) ; i foot ; flowers white, in June ; 

 Calabria; 1827. C. latifolia (broad-leaved); marsh plants; 2 

 feet; flowers purple, in June ; Spain ; 17 10. C. macrophylla 

 (large-leaved) ; i foot; flowers purple, in May ; Siberia; 1824. 

 C. prateiisis (meadow) ; marsh-plant ; i foot ; flowers purple, in 

 May ; Britain. C. pratensis plena (double-flowered) ; marsh- 

 plant ; I foot; flowers purple, in May. C. pratensis ple?ia-alba 

 (double white-flowered) ; marsh-plant ; i foot ; flowers white, in 

 May. C. thalictroides (thalictrum-like) ; annual ; i foot ; flowers 

 white, in June ; Piedmont; 1818. C. trifolia (three-leaved); 2 

 feet; flowers white, in May; Switzerland; 1629. C. 7iliginosa 

 (bog) ; marsh-plant ; i foot ; flowers white, in May ; Tauria ; 

 1819. 



Cardinal Flower. See Lobelia. 



Cardiospermum. [Sapindaceae.] A family of ornamen- 

 tal climbers, commonly known as "balloon vine." They 

 need a light warm soil and a sunny exposure, and are useful 

 for covering arbors and trellisses. Propagated by seed 

 sown in May. 



C. Halicacabum (smooth-leaved) ; tender-annual ; 5 feet ; flow- 

 ers white, in July ; India; 1594. The other species are C. Co- 

 rindiim and piibescens. 



Carduus. Thistle. [Compositae.] A genus of rank- 

 growing plants with showy flowers. Although generally re- 

 garded as weeds, some of the species do well in shrubbery, 

 and are not unornamental. They are annual, biennial, and 

 perennial, and are generally propagated by seed. 



