SAPROPHYTIC FUNGI OF EASTERN IOWA. ^. 



4. D.iDALEA AUREA J^n'eS, 



Pileus corkv coriaceous, golden yellow, gibbous, velutine 

 sub-zonate. vellow within, hvmenium porose or narrowly 

 sinuate-lab vrinthiform. 



Not common; specimens before me are thickish. about six 

 centimeters wide, pale yellowish-brown, only slightly velutine,. 

 The color deepens much with age. 



5. D.EDALEA QUERCIXA PcrSOOU. 



Pileus pale wood color, corky, rugulose, uneven but smooth,, 

 zoneless, concolorous throughout; pores at first small, round, 

 then sinuate, contorted labyrinthine, the edge obtuse: perennial. 



On oak, not common. Our specimens are small, not 

 exceeding i ^ inches. The pores are not yet fully developed, 

 but seem sufficiently characteristic. The context is soft sube- 

 rose like the finest cork. N. A. F. 315. 



6. D.EDALEA AMBiGUA BcrkcIcy. 



Pileus suberose. thick, convex, azonate. dealbate. glabrous; 

 hymenium sub-alutaceous ; pores small, sinuous, edge obtuse. 



On maple trunks, not common; found in Missouri, just south 

 of the Iowa line and certainly to be found as part of our flora. 

 An elegant, fragrant species. Our specimens, about live 

 inches in diameter, very smooth and soft to the touch, white 

 above (dealbate — :i7^//r-ziW5//£'(7') , below' pale buff, or yellow.. 

 Width live to seven inches; length about the same. Thick- 

 ness about one inch. 



VII. TRAMETES. 



Pores subrotund. obtuse, entire, frequently unequal in depth 

 and not forming a heterogeneous stratum, but as if sunk in the 

 substance of the pileus; trama of the same substance as the 

 pileus. Lignatile fungi. 



This genus mercfes on the one hand with Dcedaha and on 

 the other side with Polxponis and Polyst ictus; from Dcvdaha 

 it is distinguished by the shape of the pores; from the Poly— 



