THE CORX SMUT 



203 



Wlien one of these spores comes in contact with a 

 drop of water it soon germinates hy sending out a little 

 tube, which has the power of developing certain second- 

 ary spores, called sporidia. The sporidia themselves 

 have the power of germinating, under favorable condi- 

 tions, and in a liquid containing sufficient organic mat- 



FIG. 84. PART OF SMUTTED KAU OK C()1!N. 



ter for their nourishment (manure water, for example), 

 they can continue growing and multiplying for an indef- 

 inite period. It is l^elieved, by some authors, that these 

 sporidia may develop in the barnyard, from the spores 

 which find Iheii- way to the manure pile, and be carried 



