Bui. 5 1 0, U. S. Dept of Agriculture. 



Plate VII. 



Lumber Sanitation: Wood-Rotting Fungi.— VII. 



Pig. 1.^ — Lenzites trabea, upper and lower surfaces. Figs. 2 and 3. — Lenzites bctuUna: 2, Lower sur- 

 face; 3, upper surface. Fig. 4. — Lentinus lepideus, typical form on railway ties. 



