82 GARDEN FLOWERS. 



CALOPOGON. [Orchidaceae.] A fine native orchid, but 

 of difficult culture. Soil, moist peat and sand. 



C. pulchellum (pretty) ; hardy perennial ; 6 inches ; flowers 

 purple, in July ; North America ; 1771. 



CALTHA. Marsh-marigold. [Ranunculaceae.] Hardy per- 

 ennial water-plants, of easy culture, propagated by dividing 

 the roots. They are suited for planting on the margin of a 

 piece of water, where their bright-colored blossoms are very 

 showy. The most ornamental is the double-flowered variety 

 of our wild species (C. palustris flore-pleno.) Though grow- 

 ing best in the immediate vicinity of water, and most appro- 

 priate for rough scenery, they do very well in other situa- 

 tions, if the soil is damp ; and the variety above named is 

 sufficiently showy to make it worth introducing among hardy 

 perennials in a mixed border. 



C. natans (floating) ; hardy aquatic, floating ; flowers yellow, 

 in May; Siberia; 1816. C. palustris flore-pleno ; hardy peren- 

 nial ; 1 8 inches ; flowers golden, in May ; a garden variety. 

 C. parnassiafolia (parnassia-leaved) ; hardy perennial ; 6 .inches ; 

 flowers yellow, in May ; North America ; 1815. 



There are ten other species. 



CALYCANTHUS. Allspice. [Calycanthaceae.] Hardy de- 

 ciduous shrubs, remarkable for the fragrant spice-like odor 

 of their brownish blossoms. Moist, light, loamy garden 

 soil. Increased by layers. 



C. floridus ; hardy shrub ; 6 feet ; flowers brown, in June ; 

 Carolina; 1726. 



There are several varieties of this species. The other 

 species are C. fertilis, glaucus, Itzvigatus, macrophyllus, ob- 

 longifolius, ocddentalis, and Pennsylvanicus, all with fragrant 

 brownish-purple flowers. 



CALYPSO. [Orchidaceae.] A beautiful and very rare na- 



