CONTRIBUTIONS FROM THE NEW YORK BOTANICAL 



GARDEN— No. 41 



THE POLYPORACEAE OF NORTH AMERICA-V. 



THE GENERA CRYPTOPORUS, PIPTOPORUS, 



SCUTIGER AND PORODISCUS 



By WILLIAM ALPHONSO MURRILL 



NEW YORK 

 1903 



LReprinted from the Bulletin or thb Tokkky Botanical Club, 30 : 42a-434. August, 1903J 



