CACALIA. [Compositae,] This genus consists partly 

 of curious succulent plants (sometimes called Kkinia), 

 and partly of herbaceous plants, among which are two prett}^- 

 hardy annuals (sometimes called Emilia). The former are 

 but seldom grown in this countr}^, though very pretty little 

 plants ; the latter, commonly called " Tassel Flowers," are 

 very popular garden flowers, and are propagated by seeds, 

 which may be sown in the open borders in May, and the 

 plants come into bloom during summer. 



C. Alpina (Alpine) ; hardy herbaceous perennial ; 2 feet ; 

 flowers purple, in July; Austria; 1739. ^- coccinea {^Z2.x\^\) \ 

 hardy annual ; 18 inches ; flowers orange, in July ; South Ameri- 

 ca ; 1799. C. cocciiiea aiLreaj flowers buff'-orange ; garden hybrid. 



CcELESTiNA. [Compositae.] Pretty half-hardy plants, 

 suitable for bedding, forming fine dense plants in rich loamy 

 soil, requiring greenhouse protection in winter. Propagated 

 by seeds and cuttings. 



C. ageratoides (ageratum-like) ; i foot ; flowers blue, in Au- 

 gust ; New Spain ; 1824 ; called also Ageratum ccelestinum. 

 C. ccerulea (sky-blue) ; i foot ; flowers blue, in July ; North 

 America; 1732 ; called also Eiipatoriiun ccelestimi7)i. C. mi- 

 crantha (small-flowered) ; 18 inches ; flowers blue, in July ; 

 South America ; 1800. 



Cajophora. [Loasacece.] Pretty biennial twining plants, 

 which have been separated from Loasa. To be had in per- 

 fection, they should be sown in June or July, and kept 

 through the winter in an airy greenhouse, and then planted 



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