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20. Any variation in the spores as to size and shape. Look for 
bits of mycelium. 
Make an enlarged DRAWING of several of the spores. 
These chlamydospores go with the fodder into the manure and finally 
out on the land. They winter over in the manure and germinate 
during the following season. Their dependence upon saprophytic nourish- 
ment in germination is evidenced by the fact that they develop sporidia 
much better in a nutrient solution, e.g. manure-extract, than they do in 
water. 
REPORT 
1. Explain why seed treatments, so generally effective with smut 
diseases, will not control the corn smut. 
