FIG. 33. DISEASES OF THE CAULIFLOWER AND RADISH. 



a. Spot disease of cauliflower (after McCulloch), b. white rust of radish, c. conidio- 

 phore of the white rust fungus, Cystopus candidus, d. fertilization in Albugo Candida, 

 e. germination of the oospore of Albugo Candida, f. ring spot on cauliflower head, g. 

 perithecium of Mycosphcerella brassicicola, h. ascus of Mycosphcerclla brassicicola, i. 

 ascospores of Mycosphcerella brassicicola (g. to . after Osmun and Anderson). 



