THE TUBE-BEARING FUNGI 



375 



Boletus Russelli. Frost. 

 Russeli/s Boletus. Edible. 



The cap is thick, hemispherical or convex, dry, covered with downy scales or 

 bundles of red hairs, yellowish beneath the tomentum, often cracked in areas. 

 The flesh is yellow and unchangeable. 



The tubes are subadnate, often depressed around the stem, rather large, 

 dingy-yellow, or yellowish-green. 



The stem is very long, equal or tapering upward, roughened by the lacerated 

 margins of the reticular depressions, red or brownish red. The spores are 

 olive-brown, 1 8-22x8- lOfi. 



Figure 306. Boletus Russelli. One-half natural size. 



The pileus is one and a half to four inches broad, the stem is three to seven 

 inches long, and three to six lines thick. This is distinguished from the other 

 species by the dry squamulose pileus and the color of the stem. The latter is 

 sometimes curved at the base. Peck. 



I have found this species frequently in the woods and open places about 



