568 BULLETIN 347 
to evaporate, leaving the spores in a separated condition on the slide, 
they did not retain their viability longer than a month. The difference 
Resting 
Spore 
ae 
4 PM 
u AM 
nM 5PM 4 . 
2PM : 
Pm 
2PM 
7PM 
lulu! 
[space = 2.85% 
Fic. 91.— Successive stages in the germination of an ascospore 
