PLATE 25 
Potato-stem lesions four weeks after inoculation: 
A-L, Plants inoculated with, species of Fusarium: A, F. discolor; B, F. oxysporum; 
C-I, F. eumartii; E-H represent portions of the same plant, showing necrotic areas 
throughout the stem; J, F. coeruleum; K, F. sohxni; L, F. discolor var, sulphureum. 
M, Plant inoculated with Botrytis sp. I. 
