THE POLYPORACEAE OF WISCONSIN. 141 



Pileus 2.5 to 7.5 cm. broad; stem 3.75 to 7.5 cm. long, 4 to 8 mm. thick. 



This species was quite common along paths in light mixed woods near 

 Hazelhurst in August 1904. A few specimens were also found near 

 Crandon, Shanagolden and Madison. 



The largest was about 5 cm. in diameter ; the stipe about 4 cm. long 

 and 5 mm. thick. The pileus was of a red-ferruginous color, more yel- 

 lowish below ; the cuticle was slightly viscid and more or less separable, 

 the flesh was yellowish beneath the cuticle, but otherwise white. The 

 pores are large and long so that older pilei seem to have an obtuse 

 margin. The tubes are adnate, the mouths pale orange-brown. The 

 stem is slender tapering downward, smooth, yellow within, tawny- 

 yellow without, sometimes red above. The taste is sharp-peppery 

 like cayenne pepper. This is the most available character by which 

 it may be recognized. 



Boletus badius Fries. 



Pileus convex, even, soft, viscose or glutinous, shining when dry, 

 tawny chestnut, flesh whitish tinged with yellow, bluish next the tubes ; 

 tubes large, angular, long adnate or sinuate depressed, whitish yellow, 

 becoming tinged with green; stem subequal, even, solid, paler, brown- 

 pruinate ; spores fusoid-oblong. 



Pileus 5 to 7.5 cm. broad; stem 5 to 10 cm. long, 6 to 12 mm. thick. 

 Spores 10 to 12.5 microns long, and 4 to 5.6 microns wide. 



Our specimens come from Madison and Blue Mounds, collected in 

 August, 1903. The largest measures about 20 cm. broad. The stem 

 measures 1.5 by 7 cm. to 12 cm. 



The pileus is convex, smoky brown, smooth. The somewhat large 

 pores are adnate, and sooty in color. The stem is equal furfuraceous, 

 tawny above and darker below. The flesh white to rosy. Flesh and 

 tubes change to blue where wounded. 



Boletus granulatus Linn. (Plate XIX, fig. 65; PI. XX, fig. 65). 



Pileus convex or nearly plane, very viscid or glutinous and ferrugi- 

 nous-brown when moist, yellowish when dry, flesh pale-yellowish ; tubes 

 short, adnate, yellowish, their mouths simple, granulated ; stem dotted 

 with glandules above, pale yellowish; spores "spindle shaped, yellow- 

 ish orange, 7.6 to 10 microns long, 2 to 3 microns broad." 



"Pileus 3 to 10 cm. broad ; stem 2.5 to 5 cm. long, 8 to 12.6 mm. thick. 

 Woods, especially of pine and in open places under or near pine 

 trees." 



