74 THE BOOK OF BULBS 



districts it is hardy, but it ought usually to have the 

 protection of a frame in winter, or to have its tuberous 

 roots stored in sand until spring, when it may be planted 

 about three inches deep. It likes a rich, but light soil. 



BRAVOAS 



Bravoa geminiflora, the only one of the three species in 

 cultivation, is hardy in warm places in the south, but for 

 most gardens its proper treatment is that of a frame 

 bulb. It has beautiful orange-red, drooping flowers in 

 July, on stems from one and a half to two feet high. It 

 likes a light, sandy soil, and may be planted about three 

 inches deep in autumn. 



CYPELLAS 



These are pretty plants allied to the Iris, and well 

 suited for growing in pots in the greenhouse as well as 

 for frame cultivation. They may also be planted out in 

 spring, and lifted in autumn and potted. They like a 

 light, sandy soil, and may be planted two inches deep in 

 pots, or three inches if in a frame. In the latter it is well 

 to give them a little covering in frosty weather. They 

 may be raised from seeds or increased by offsets. Cypellas 

 grow from one to three feet high. The most desirable 

 are Herberti, yellow ; peruviana, yellow, spotted red- 

 brown ; and plumbea (syn. Pohlia platensis), lead- 

 coloured, with a tinge of yellow in the centre. 



DAHLIAS 



The Dahlia is too extensive a subject to permit of its 

 being fully considered in the limits of this work, but, 

 without entering upon particulars regarding the various 

 sections and varieties of the flower, it may be helpful 

 to give a few broad cultural details for the benefit of 



