TLATF. XXI 



ROUGH-STEMMED BOLETUS 



Boletus seaber 



Pileus: Rounded convex; diameter two to five inches; sur- 

 face occasionally smooth and viscid when moist; color 

 usually brownish red, but varying from orange brick red 

 or even black in certain varieties to yellow or whitish. 



Tube surface : Rounded, cushion-like ; whitish at first, be- 

 coming dingy; tube openings small and round, and rather 

 long as seen in section. 



Spores : Reddish brown. 



Stem : Solid, dingy white, tapering slightly above, more or 

 less thickly beset with brownish, fibrous, dot-like scales, 

 this being the most pronounced botanical character for 

 identification. 



Flesh : White or dingy in certain varieties, often changing to 

 blue, brown, pinkish, or black where wounded. 



Taste: Negatively pleasant. 



Habitat: A common and widely distributed species, with 

 many variations of color. Found in woods and shaded 

 waste-places. 



Season: July-October. 



