68 



The fungus attacks not only the growing pea-stems and leaves, 

 but also the pods and thence may grow into the seed. Many 

 peas which show no discoloration are infected. Consequently, 



Fig. I. a, pea seedling attacked hy Ascochyta ; lesion on side of stem; l>, pri- 

 mary and secondary stems killed at tip by fungus ; a fifth stem just starting ; c, 

 primary stem killed above ; a branch and the buds in the axils of the two cotyledons 

 developing ; one of the latter killed at the tip. 



