200 THE POLYPOBAOEAE OF WIS00N8IN. 



PLATE XXII. 

 Boletus. 



Pig. 74. — Boletus subtomentosus Linn, a, stipe and section of pileus; B, pores. 



Fig. 75. — Boletus radicans Pars, a, entire plant; 6, pores. Devil's Lake, Aug- 

 ust. 



Fig. 76. — Boletus Russellii Frost, a, entire plant reduced; &, pores. 



Fig. 77. — Boletus separans, Peck. Crandon, August. 



Pig. 78. — Boletus edulis Bull., var. clavipes. Rather small specimen. Devil's 

 Lake, August. 



