CONTRIBUTIONS FROM THE NEW YORK BOTANICAL 



GARDEN— No. 38. 



THE POLYPORACEAE OF NORTH AMERICA-IV. 

 THE GENUS ELFVINGIA 



By WILLIAM ALFONSO MURRILL 



NEW YORK 

 1903 



[Reprinted from the Bulletin of the Torrey Botanical Club, 30: a«-fl8t. My 1903] 



