Fia. 38.— Fomes annosus. Fructification cut across 
showing pores in longitudinal section (x $). 
Fie. 39.—Fomes annosus. Under surface of small fructification 
showing mouths of pores (x 4). 
Fia. 40.—Upper surface of fructification showing concentric furrows and 
white margin. The white at the bottom edge of the photograph is a flint 
included in the fungus (x 4), 
_ bd 
