FLESHY AND WOODY FUNGI 



229 



subnivosa is occasional on dead deciduous wood in Florida, Louisiana 

 and Mississippi. At New Orleans, it was collected on living water 

 oak and at Eustis, Fla. on cypress. The species become more abundant 

 in tropic America where nine have been found. T. jalapensis was col- 

 lected on a railway tie near Jalapa, Mexico. The species of Coriolus 

 are annual. It includes Coriolus (Polyponis) versicolor found on all 



fM^n'. V-"^'\* 'J-,.^ ,, 



Fig. 91. — Piece of dead wood with sporophores of Fames fomenlceius . (After von 

 Schrenk, Hermann, Bull. 149, U. S. Bureau of Plant Industry, pi. viii, 1909.) 



kinds of dead wood. It causes root rot in many trees and becomes a 

 wood parasite of Catalpa. It has a leathery, thin and rigid hymeno- 

 phore depressed at the point of attachment. The surface is velvety 

 and variegated with two-colored zones. The pores are minute rounded 

 with ragged edges, white then yellowish. Polyporus arcularius is com- 

 mon in the eastern United States on dead branches and trunks of vari- 



