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P. sulphureus (Fr.) — The sulphur polyporus. Entire surface sulphur yel- 

 low; edible; forms "punk" in the wood; common. 



P. betulinus (Fr.) — The birch polyporus. Hoof -shaped; smooth and 

 brown; flesh white; grows on birch. 



P. igniarius (Fr.) — Black and often hoof -shaped; surface marked by zones 

 of growth. 



P. fomentarius (Fr.) — The bracket polyporus. Color smoky grey; surface 

 strongly zoned and furrowed ; common on birch, beech and maple. 



Polystictus pergamenus (Fr.) — The parchment polystictus. Very common; 

 faintly zoned ; ashy grey ; tubes often torn and teeth-like. 



Polystictus versicolor (Fr.) — The zoned polystictus. Velvety surface 

 marked by concentric zones of colors ; often shelving ; common and 

 quite variable. 



Polystictus cinnabarina (Fr.) — The cinnabar polystictus. Pliant, thick 

 and shelving ; on dead logs and branches. 



