Plate 5 
ingf ungus (P. schweinitzii 
1 wall as indicated by th 
led with Bismark browi 
of Decay in Wood 
h showing minute hyaline hyphae of i 
Picza sitchensis. Note the penetrai 
areas in the path of the hyphae 
'he Diagnosis 
•hotomicrograj 
a test piece of 
