2i6 Diseases of Greenhouse Crops 



Canna (^Carina indica) 



Cultural Considerations, The canna, although an 

 outdoor plant, is also extensively grown in the green- 

 house for propagation and for decoration. The va- 

 rieties best adapted for forcing may be mentioned: 

 Queen Charlotte, Madame Crazy, Explorateur. For 

 flowering in the greenhouse it is best to start with 

 dormant plants. 



Fungi Recorded on the Canna 



Cannas seem to be unusually free from diseases. 

 With the exception perhaps of the rust, Uredo can- 

 ncz^ the others here mentioned are saprophytes or 

 semi-saprophytes attacking old and weakened plants. 



Anthostomella achira Speg., Macros porium huU 

 botrichum Cke., Ophiobolus linosporoides Speg., 

 Uredo canncz Wint. 



