104 THE CHICAGO ACADEMY OF SCIENCES 



with green, becoming sordid-yellow; stem lemon-yellow with red 

 or rhubarb stains at the base, contracted at the top when young; 

 subcespitose. 



Spores 10 to 12.5 x 4 to 5 /A.; pileus 5 to 15 cm. broad; stem 

 7.5 to 10 cm. long, 6 to 12 mm. thick. 



Grassy places in woods, Lisle and Glen Ellyn. August. 

 Frequent. Our plants all belong to the variety sensibilis. Pileus 

 5 to 10 cm. broad, at first of a rich vermilion color and with a 

 texture like velvet, soon becoming sordid-ochraceous. 



Boletus subluteus Pk. 



Pileus convex or nearly plane, viscid or glutinous when moist, 

 often obscurely virgate-spotted, dingy-yellowish, inclining to 

 ferruginous-brown; flesh whitish varying to dull-yellowish. 



Tubes plane or convex, adnate, small, subrotund, yellow, be- 

 coming ochraceous. 



Stem equal, slender, pallid or yellowish, dotted above and 

 below the annulus with reddish or brownish glandules; annulus 

 submembranous, glutinous, at first concealing the tubes, then 

 generally collapsing and forming a whitish or brownish band 

 around the stem. 



Spores subfusiform, ochraceous-ferruginous, 7.5 to 10 x 4 

 to 5 # v .Pileus 3,. to 7.5 cm. broad; stem 3.5 to 6.5 cm. long, 

 4 to 8 v Sin.* thick./ : :/: 1 : 



Sandy s.wa]eg, .under piae. trees, Clarke, Indiana. September. 



'od-iir ; ', ' '. 



Boletus granulatus L. 



Pileus fuscous-ferruginous with the gluten with which it is 

 smeared, yellowish when the gluten separates, convex-expanded; 

 flesh light yellowish. 



Tubes adnate, short, their mouths simple, granulated. 



Stem pale-yellowish, dotted with granules upwards. 



Spores 7.5 to 10 x 2 to 3 /x. ; pileus 5 to 7.5 cm. broad; stem 

 5 cm. or more long, 6 to 12 mm. thick. 



In pine woods. Millers, Indiana. October, 1903. Harper. 

 Boletus hirtellus Pk. 



Pileus broadly convex, soft, viscose, golden-yellow, adorned 

 with small tufts of hair or fibrils; flesh pale-yellow. 



Tubes adnate, medium size, angular, becoming dingy-ochra- 

 ceous. 



Stem subcespitose, equal, stout, glandular-clotted, yellow. 



Spores pale ochraceous-brown, 9 to 10 x 4 ft. ; pileus 5 to 10 

 cm. broad; stem 5 to 7.5 cm. long, 8 to 16 mm. thick. 



Sandy swales in shaded places, Pine, Indiana. Pepoon, who 

 remarks that it is "too near B. americanus." 



Boletus chromapes Frost. 



Pileus convex or nearly plane, slightly and sometimes fascic- 

 ulately tomentose, pale red; flesh white, unchangeable. 



