PORE FUNGI, POLYPORACEiE 



stricted in distribution by the occurrence of 

 particular trees. 



Boletus edulis (Plate X, c) is a large form 

 with red-brown or gray-brown pileus, the 

 pore surface white or yellowish, the stem 

 often thickened or slightly bulbous at the 

 base and reticulate above. The flesh of this 

 species changes its color only slightly. It is 

 apparently widely distributed over the world 

 and in Europe it constitutes, as a rule, more 

 of the fleshy product sold in the market than 

 any other species. It is likewise extensively 

 dried and also preserved in oil and butter. 

 For drying the plants are cut into thick 

 slices, strung on stout cord, and suspended 

 about the kitchen or other warm room. 



In the United States the typical B, edulis 

 does not appear to be so abundant, but one 

 or more of several closely related species 

 are commonly found. Among these are B. 

 scaber and B. granulatus, both of which are 

 prized in Europe almost equally. In some 

 of the larger markets of Europe B. scaber 



175 



