112 PRACTICAL BOTANY. 



uredo-spores should be kept till the autumn, when the 

 patches which before produced uredo-spores only will, 

 on investigation as above directed, be found to bear 

 teleutospores intermixed with them, and finally to 

 assume the winter condition of containing teleuto- 

 spores or winter-spores only, in which condition the 

 winter is passed : with this stage the study of the 

 Fungus, as above directed, was begun. 



