Plate VI. 



Coriolits prolificuns (Fries) Murrill, on trunks of Qiiciciis coccinca 

 Muenchh. killed by a light surface fire. A two-foot rule is shown on the 

 trunks. This photograph shows the general appearance and habit of 

 growth of this extremely common sap-rotting fungus. It was prin- 

 cipally the black zones of decomposition products formed in hickory 

 wood as a result of its decay by this fungus that have been studied here. 



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