384 



Diseases of Economic Plants 



woody, rough above, later fissured, yellow-brown at the 

 margin, later deep brown. The pore layer is yellow to 

 brown. 



Red-rot, pecky-cedar ^"^ (Polyporus roseus Fr.). — More 

 common than white rot, this has been observed in Missouri, 



Fig. 201. — ^ Cross-cut of cedar log showing effect of 

 Fomes juniperinus. After von Schrenk. 



Arkansas, Kentucky, Tennessee, Virginia, New York, and 

 Mississippi. 



The wood is full of pockets of brown, brittle wood, vary- 

 ing from a centimeter to a meter or so in length. The sporo- 



