76 BULBS AND TUBEROUS-BOOTED PLANTS. 



leaves being quite ornamental and produced in the great- 

 est profusion. The flowers precede the leaves and con- 

 tinue from August to October. 



C. ibericum (Iberian). A native of the Caucasus; 

 flowers bright red in the type, with a bright purple spot 

 at the base. 



C. neapolitanum (Neapolitan). A close alliance 

 with C. europceum. 



CYPELLA. 



A handsome greenhouse bulb, of easy culture. The 

 flowers are yellow, with a dark stripe down each petal. 

 C. Herlerti, the only species, is a native of South Amer- 

 ica. This is one of a large class of bulbs, beautiful, but 

 not popular. It cannot be grown outside of the green- 

 house, other than in the most temperate climates, and 

 it has not a commercial value that will warrant green- 

 house care. 



OYKTANTHUS. 



A small genus of deciduous and evergreen bulbs, 

 from the Cape of Good Hope. While the flowers of the 

 Cyrtanthus* are all beautiful, and some singularly so, 

 the difficulty in producing them, and in preserving the 

 bulbs, is so great, in proportion, that they are rarely 

 met. They require treatment so different from nearly 

 all other plants, that a house must be devoted to them 

 alone, if success is to be attained. The ordinary green- 

 house is too cold and damp ; the stove house is too warm 

 and damp. Hence the difficulty in their management. 



DAFFODIL. 



See Narcissus. 



DAHLIA. 



But few of the many genera of flowering plants have 

 had so many ups and downs, in the way of popularity, 

 as the Dahlia. When first introduced, the single forms 



