Miscellaneous Publication 498. U. S. Dept. of Agriculture 



PLATE 13 



A-D, Black rot on orange: .4, At stem end, external view: B, just below button, 

 cross section: C, after 3 months' storage at 32° F.: and D, at navel. E, Stylar- 

 end (blossom-endj splitting, without internal infection, on orange. 



