FIG. 38. Fomes annosits. Fructification cut across 

 showing pores in longitudinal section ( x |). 



FIG. 39. Fomes annosus. Under surface of small fructification 

 showing mouths of pores ( x }). 



FIG. 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 \). 



