29 



GERMINATION. 



This takes place after a period of rest, so tins 

 zygospore is termed a resting spore. 



Usually in the spring following its formation it 

 escapes from the parent cell by the decay of the 

 mother filament, or it may germinate while still 

 within it. The innermost layer of the cell wall bursts 

 through the outer ones, and develops into a filament 

 like the parent plant. 



Gt^Grt)(s r4j^e)G^^}Ce) 



