230 HOT-HOUSE OF REPOTTING. [MAY. 



Crotons. About twenty-eight species, few of them 

 deserving cultivation; but the genus is celebrated for its 

 beautiful C. pictus, leaves oblong-lanceolate, variegated 

 with yellow, and stained with red, flowers small green, 

 on axillary spikes. C. varidgatus, variety fatifblia, is 

 finer than the original variagdtus, the nerves in the 

 leaves are yellow, and the leaves lanceolate, entire and 

 smooth. To make them grow freely, give the warmest 

 part of the Hot-house, and drain the pots well. 



Cerberas. About twelve species of strong growing 

 trees, full of poisonous juice. C. thevetia is an elegant 

 plant, with accuminate leaves, and large, nodding, yel- 

 low, solitary, fragrant flowers, proceeding from the 

 axil ; C. ahouai produces a nut which is deadly poison. 

 C. odallam, once C. mdnghas, has large star-like flowers, 

 white, shaded with red. They are principally East 

 India plants, and require great heat. 



Cycas, four species, generally called Sago palm, as 

 an English name. The plant that Sago is extracted 

 from, belongs to another genus, (see SdgusS) C. revo- 

 luta is a well known palm, and will keep perfectly well 

 in the Green-house. We have seen a beautiful spe- 

 cimen of it which is kept every winter in the cellar, but 

 those that are kept so cool in winter only grow every 

 alternate year, while those that are kept in the Hot- 

 house grow every year, which shows that heat is their 

 element. C. circindlis is a large growing species ; the 

 fronds are much longer, but not so close and thick. C. 

 glauca is a fine species; the foliage is slightly glaucous. 

 They require plenty of pot room, are much infested 

 with the small white scaly insect, and ought to be fre- 





