Fig. li|. — Fomes pinicola conk on upper 

 bole and frost crack on lower bole. 



Fig. 16. — Conks of Fomes robustus on 

 bole of felled tree showing dead 

 side caused by this fungus. 



Some conks and injuries 

 that are reliable indicators 

 of cull in western hemlock 



Fig. 15. — Fomes applanatus conks and 

 rotten stub protruding from lower 

 bole. 



Fig. 17. — Conks of Polyporus 



sulphur eus on lower bole. These 

 conks are bright yellow when 

 fresh and white and brittle 

 when dry. 



-17- 



