Bui. 1053, U. S. Dept. of Agriculture. 



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Fungi Studies of Importance in the Decay of Building Timbers. 



(X 523.) 

 Fig. 1.— Oidia of Lenzites sepiaria from malt-agar culture. Fig. 2.— Stages in formation of 

 chlamydospores of Trametes serialis on secondary mycelium in malt agar, with a few thin- 

 walled chlamydospores. Fig. 3. — Oidia and mycelium of Lenzites sepiaria upon fibia of 

 cockroach allowed to roam over wood block culture over night. 



