158 



Mycologia 



However, much shorter times have been recorded for develop- 

 ment in cultures. 



Other similar data could be summarized. However, they 

 would scarcely add to the conclusions regarding the rate of growth 

 and ecesis in lichens, a subject about which so little has been 

 known that one could scarcely form any opinion based on 

 knowledge. 



Miami University, 

 Oxford, Ohio. 



