PLATE 7 
A. —Full-sized but immature castor bean, with part of the hull torn away. Note 
the large fleshy white caruncle. X 3. 
B. —Similar view of a castor bean and hull taken from a diseased inflorescence. 
Note the gray mold growing on the pod, seed coat, and caruncle. Orlando, Fla., 
Aiigust, 1919. X 3* 
C. —Four castor beans from a diseased spike, showing gray mold growing from the 
seed coat and caruncle. Magnification indicated by the scale. 
D. —Gray mold growing from two castor beans six months after they were taken 
from the hulling plant at Plant City, Fla. The upper one has the mold growing 
directly on the bean; the lower one shows the mold grown from the seed to the nutri¬ 
ent medium, where it is rapidly developing. 
E. —Seed taken from a diseased inflorescence collected at Alvin, Tex., October, 
1918. Note the sclerotia on seed coats and hulls. These beans consist of nothing 
but shells. Natural size. 
