Fig. so. Chrysanthemum Diseases. 



a. Botrytis blossom rot, healthy and diseased (after Spaulding), b. ray 

 blight (after Stevens, F. L.), c. chrysanthemum rust (after Smith. R. E.). d. Urc- 

 dospores of Puccinia chrysanthemi, e. Cylindrosporium fungus, /. Cylindro- 

 sporium blight (e and f after Halsted). 



