Bui. 36, Bureau of Plant Industry, U. S. Dept. of Agriculture 



PLATE VII. 



MYCELIUM AND FRUITING BODIES 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 (Ceratottomclla pit if era); 5, mature perithecia of the "blue" 

 fungus; 6, two perithecia of the "blue" fungus; 7, two asci with spores of the "blue" fungus; 8, spores 

 of the "blue" fungus; 9, top of beak of perithecium of Ceratantnm<'lla pilifera just after the discharge of 

 the spore mass; 10 and 11, median sections of sporophores of the "red-rot" fungus Poli/porus ponder- 

 osus, n. sp.). 



