Plate X 
Plate X. Fig. 1 shows the final stage of dry rot in which the entire tuber 
is converted into a dry mass of tissue remnants, starch, hyphae, and 
spores. This tuber was kept in the laboratory on a table after in- 
oculation. Fig. 2 shows the characteristic appearance of the rotted 
region. This is an Early Ohio tuber kept in the refrigerator in humid 
air. Fig. 3 shows the exterior of the tuber shown in Fig. 2. Here 
is a copious development of the fungus on the outside of the tuber. 
Fig. 4 shows slight development of the rot in a deep inoculation 
puncture. All photographed six weeks after inoculation. 
