142 
quickly reduced to a semi-fluid or pulpy condition. This rapid 
disintegration is accelerated by innumerable saprophytic fungi 
operation the host plant has either completely disappeared, or 
exists in such a condition that few mycologists care to retain it 
j i n th 
fructifications. 
Again in cultures of the fungus on artificial media micro- 
sporogeny does not often occur within a period of approximately 
one month. i ut t r 
from these the microconidia germinate and give rise to a normal 
mycelium producing the usual conidiophores, so that the microco- 
nidial origin of the new culture remains unsuspected. If b 
chance ion i 
e wths. It would appear, 
therefore, that in these cultures Rear formation pies not 
