152 



RESEARCHES ON FUNGI 



FIG. 52. Hydnum septentrionale Fr. Fruit-bodies springing from a frost-crack in the 

 trunk of a Manitoban Maple, Acer Negundo. This species is said by Fries to be 

 the largest of all Hydna. Its pilei are dimidiate, caespitose, and creamy -white. 

 The central mass was 5 inches broad and 8 inches high. Photographed by 

 C. W. Lowe in Elm Park, Winnipeg. Somewhat less than J natural size. 



