DESCRIPTIVE AND SELECTIVE. 201 



of the Crocuses and the flowers precede the leaves. 

 It can be got from bulb dealers in autumn and planted 

 an inch deep in ordinary soil. If it is desired to 

 increase it divide in late summer. 



CALANDRINIA UMBELLATA,—A brilliant 

 perennial trainer, hardy, easily grown from seed, and 

 not very particular as to soil. Few brighter flowers 

 can be grown. By sowing early under glass it can be 

 flowered the same year. 



CALLA. — ^The beautiful Lily of the Nile, now called 

 by botanists Richardia AfricanUj is extensively grown 

 under the name of Calla aethiopica. It is not hardy, 

 but sometimes endures our winter in shallow water in 

 mild places, and is thus not entirely out of consideration 

 as a garden aquatic. The species palustris, the 

 Bog Arum, is quite hardy, and may be pressed 

 into service where plants are wanted for marshy 

 ground. 



CALTHA (Marsh Marigold). — ^The native Marsh 

 Marigold, Caltha palustris, which bears yellow flowers 

 in spring, is doubtless a familiar plant to many readers, 

 and may hardly be considered good enough for inclusion 

 in a selection of marsh plants for the garden. It is, 

 however, showy. The dwarf double form called minor 

 plena may give more satisfaction, or if a larger one is 

 wanted, monstrosa plena. All like the waterside, 

 and are easily increased by division. 



CAMPANULA.—Se^ Chapter IV. 



CARDAMINE (Ladies* Smock).— The place for 

 the members of this genus is the bog, as they are 

 moisture-lovers. It is hardly likely that the common 



