BOLETUS. 127 



Tubes, free, yellow, becoming greenish, mouths round, 

 vermilion, becoming orange. 



Stem, stout, vermilion, somewhat orange at the top ; 

 reticulate or punctate. 



Pileus two to four inches broad. 



Spores, .0006 inch long, .00035 inch broad. 



The lurid Boletus is found not only in our lowlands, but also on the 

 mountainside woo^s. Considered very poisonous. 



Group VII. Versipelles. 

 Tubes at first white or whitish, minute, round, equal, form- 

 ing a convex stratum free from the stem. 



B. sordidus. Frost. 

 Pileus, convex, subtomentose, brown ; flesh white, turning 

 greenish. 



Tubes, free, long, at first white, changing to bluish green. 

 Stem, brown, smaller at the top, and greenish at the apex. 

 Pileus about two inches. 



Spores, .0004 to .0005 inch long, .0002 inch broad. 

 Scarce. Found in Spring Creek woods. 



B. versipelles. Orange Cap Boletus. 



Pileus, convex, dry, at first compact, minutely tomentose, 

 then squamose or smooth, reddish, or orange red, the margin 

 appendiculate with the inflexed remains of the membrana- 

 ceous veil ; flesh white or grayish. 



Tubes, concave or nearly plane, free, minute, sordid white, 

 their mouths gray. 



Stem, equal or tapering upwards, solid, rugose-squamose, 

 whitish or pallid. 



