in this country, and has passed as Hydnum imbricatum. It has 

 thick, obtuse, adpressed, permanent scales. The type form of Hydnum 

 imbricatum (Fig. 758) so abundant in the pine woods of Sweden 

 and Europe in general, has soft, erect, detersive scales. While Hydnum 

 imbricatum is common of record in our fungus lists, I have never 

 seen but one specimen, viz., from James L. Weir, Idaho. The de- 

 terminations are based on Hydnum subsquamosum or Hydnum 

 adpressum. 



Fig. 758. 



Hydnum imbric 



Fries states, regarding Hydnum imbricatum: "There are two 

 forms, one with a plane pileus, and thick, permanent scales, the 

 other subinfundibuliform with free, receding scales." While I do 

 not know Hydnum adpressum in Europe, I infer that it is the plant 

 referred to by Fries as the first form. As to Hydnum imbricatum, 

 all the many European figures I have looked up, and all the speci- 

 mens I ever saw from Europe are the type form, which in Europe is 

 abundant. If Hydnum adpressum occurs there, it must be rare. 



553 



