Bul. 36, Bureau of Plant Industry, U. S. Dept. of Agriculture PLaTE VII. 
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MYCELIUM AND FRUITING Bopies OF “BLUE” AND “ RED-ROT” FUNGI. 
1, Tangential section of *‘ blue’’ wood; 2, cross section of ** blue’? wood: 3, cross section of a medullary ray; 
4, young perithecium of the *‘ blue’’ fungus ( Ceratostomella pilifera): 5, mature perithecia of the ‘* blue” 
fungus; 6> two perithecia of the *‘ blue”? fungus; 7, two asci with spores of the ** blue” fun 
of the ‘‘blne” fungus; 9, top of beak of perithecium of Ceratostomella pilifera just after the discharge of 
the spore mass; 10 and 11, median sections of sporophores of the “red-rot’” fungus Polyporus ponder- 
osus, 11. SPp.). 
rus: 8, spores 
