Bui. 510, U. S. Dept. of Agriculture. 



Plate II. 





I 



^^■-^ 





6 







% 







TV. 



••■■/ 



1 



^,- 

 '-?' 



#1 



Lumber Sanitation: Wood-Rotting Fungi.— II. 



Fig. 1. — Strands of mycelium of the "dry-rot" iangua, McruUus lachnjmanSj on the face of pine planks 

 in a luxaber pile at Portland, Me. (Ihcfungushasprogrcsscd to a height of six layers or more). Fig. 2. — 

 The same fungus on the grouncl and in litter beneath an open storage shed, Pliiladclphia, Pa. 

 Fig. .3. — Mycelium of a white Poria on the ground and on wood fragments beneath a cotton mill, 

 Adams, Mass. Fig. 4. — Pow<lery deposit of spores cast by a mu.shroom over night (after Atkin- 

 son). Fig. 5. — A species of Poria from a porch ceiling, Madison, Wis. Fig. 6. — Thin section of 

 an encrusting fruit body of Mcrulius lachrymans, showing palisade layer of basidia bearing spores 

 (after Falck). 



