82 GARDEN FLOWERS. 



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

 of difficult culture. Soil, moist peat and sand. 



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

 purple, in July; North America ; 1771. 



Caltha. Marsh-ma?'igold. [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; 18 16. C. pahistris fiore-pleiio j hardy peren- 

 nial ; 18 inches; flowers golden, in May; a garden variety. 

 C. p amass ice folia (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. fioridiis ; hardy shrub ; 6 feet ; flowers brown, in June ; 

 CaroHna; 1726. 



There are several varieties of this species. The other 

 species are C. fertilis., glaucus, IcEvigatiis, 7?iac?'ophyllus, ob- 

 longifolius, ocdde?italis, and Permsylv aniens^ all with fragrant 

 brownish-purple flowers. 



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



