188 A GUIDE TO FLORICULTURE. 



the top, of the size of the common Marigold, with a pur- 

 ple bottom ; the rays are purple without, but white within. 

 These flowers only expand when the sun shines; they 

 close in the evening, and remain closed in cloudy weather. 

 They appear from April to May, when they are in the 

 greatest perfection. They will flower again in the fall ; 

 from this, one would suppose that warm weather was ob- 

 noxious to the flowers, were it not from the circumstance of 

 their opening only when the sun shone on them. This 

 variety was introduced from the Cape in 1698, 



C. vi-'cosa is another plant from the Cape of Good Hope, 

 with a shrubby stem, and upright ; the bark is of a grayish 

 color ; the branches are herbaceous ; the leaves covered 

 with a shiny substance ; leaves alternate, sessile, and 

 decumbent along the branches ; flowers large and red, ap- 

 pearing in April and May. This green-house plant was 

 introduced in 1790. 



C. chrysanthemum is the Cape Marigold, an herbaceous 

 plant, covered with a harsh pubescence ; blooms freely 

 most of the summer, and is ornamental ; flowers yellow. 



C. tragus is another variety, about three feet high, with. 

 a weak stem, which requires support while in flower. 

 It is yellow within and purple without, and fragrant, 

 which is not the case with all this family of plants. It 

 will grow readily from cuttings. 



C. arvcnsis, the field Marigold, is a native of Germany, 

 and nearly allied to the garden variety. It has been cul- 

 tivated ever since 1683. 



C. qfficinalis is the common Marigold. The most 

 essential difference between this variety and the field 

 Marigold consists in the stems being loftier, with paler 



