146 THE NURSERY-BOOK. 



Caesalpinia. Leguminosce. 



Increased by cuttings, which are somewhat difficult to 

 root, but may succeed if taken from the plant in a growing 

 state and planted in sand with a hand-glass over them, in 

 heat. 

 Cajanus. Leguminosce. 



Plants are usually raised from seeds obtained from the 

 West Indian Islands and India. Also grown from young 

 cuttings, put in sand with a hand-glass over them, in heat. 



Cakile (Sea Rocket). Cruciferce. 



Propagated by seeds sown in spring. 

 Caladium. Aroidece. 



Increased by tubers, which have been kept dry or rested 

 for some time. Place in small pots in a stove or pit, where 

 the night temperature is maintained from 60 to 65, and 

 syringed daily once or twice at least. Large tubers, if sound, 

 may be divided and the pieces potted. Some also by cuttings. 



Calamagrostis. Graminea:. 



Increased by seeds sown in autumn or spring. C. arenaria 

 (now Ammophiln arundinacea], used for holding sands along 

 sea-shores, is propagated by division and can probably be 

 handled easily by root-cuttings 



Calamintha. Labiatce. 



Increased by seeds, root divisions, or cuttings in spring. 

 Calamus. Palmece. 



Increased by seeds. 

 Calandrinia. Portulacacece. 



Increased by seeds sown in pots where they are intended 

 to flower, as transplantation, unless performed with more 

 than ordinary care, will check their growth or result in loss. 



Calanthe. Orchidece. 



As a rule, the natural annual increase in the number of 

 pseudo-bulbs meets the requirements of most cultivators. 

 Where a quick propagation is desired, it may be performed 

 by dividing the pseudo-bulbs transversely ; after allowing 

 the raw surface to callus, the upper part should be set on 

 moist sand, and several buds will form around the base. 

 The bottom portion may be used in the ordinary way. 

 Another plan is to divide the pseudo-bulbs lengthwise into 

 two or more pieces. (See under Orchids.) 



