June, 1955 Curt: Oak Witt INocuLa 293 
At the end of this time the labels were 
found to be half covered with a uniform 
mycelial growth. To serve as a check, a 
spore suspension was prepared with the 
70 
60 
50 
40 
30 
PER CENT GERMINATION 
20 
O 
O 12 24 
fungus from one label of each flask, and 
the spores were allowed to germinate on 2 
per cent water agar at 28 degrees for 36 
hours. Eighty-three per cent germination 
36 48 60 
TIME (HOURS) 
Fig. 9—Germination of pad cells from naturally occurring mats of Endoconidiophora 
fagacearum on 2 per cent water agar at four temperatures. 
