PLATE 62 
Plant showing Ricinus wilt infection from seven broken roots. This was one of 
the control plants shown in figure 127 of "An Introduction to Bacterial Diseases of 
Plants. ” 1 The inoculated dwarfed plant was cut and buried in the soil July 17, at 
which time the roots of the experimental plant were broken. When the plant was 
photographed the bacteria were most abundant in the roots but were present in the 
stem as far up as Y\ They were not in the three reflexed petioles, nor in the un¬ 
broken roots. Leaves A and B became reflexed before they wilted. Reflexing of 
tomato petioles in this disease is very common. Photographed July 29. X X- 
1 Smith, Erwin F. an introduction to bacterial diseases op plants, xxx, 688 pages, illus. 
Philadelphia and London. 1920. 
