THE POLYPORACEAE OF WISCONSIN. 133 



Boletus pachypus Fries. 



Pileus convex, subtomentose, brownish or pale tan color, flesh thick, 

 whitish, changing slightly to blue ; tubes rather long, somewhat de- 

 pressed around the stem, their mouths round, pale yellow, at length 

 tinged with green ; stem thick, firm, reticulated, at first ovate-bulbous, 

 then elongated, equal, variegated with red and pale-yellow ; spores large, 

 ovate ; pale yellowish-ochraceous, 12.5 to 14 microns long, 5 to 5.5 mic- 

 rons broad. 



Pileus 10 to 25 cm. broad ; stem 6 to 12 mm. thick. Woods, either pine 

 or beech. 



"This species is noted for its thick, stout stem, which sometimes at- 

 tains a diameter of more than five cm. It approaches the Edules in 

 habit, but according to Gillet it is poisonous or at least to be suspected, 

 has a penetrating unpleasant odor and a somewhat nauseous flavor. 

 The pores are at first whitish. The stem is sometimes intensely blood- 

 red" (Peck, 21, 2, 8, p. 126). 



Found once at Blue Mounds. The most peculiar feature of this speci- 

 men is the thick stipe which is constricted above to less than one centi- 

 meter and is covered with thick reticulations. 



Boletus ornatipes Peck. 



Pileus convex, firm, dry, glabrous or very minutely tomentose, gray- 

 ish-brown or yellowish-brown, flesh yellow or pale-yellow ; tubes adnate, 

 plane or concave, rarely convex, the mouths small or medium sized, clear 

 yellow; stem firm, subequal, distinctly and beautifully reticulated, yel- 

 low without and within ; spores oblong, ochraceous-brown, 11.4 to 13.8 

 microns long, 4 to 5 microns broad. 



"Pileus 5 to 12.5 cm. broad ; stem 5 to 10 cm. long, 6 to 12.5 mm. thick, 

 Thin woods and open places" (Peck 21, 2, 8, p. 125). 



Only one small immature specimen was found near Mud Lake, near 

 Crandon in August. Because the specimen was immature, the reference 

 may be somewhat doubtful, but I believe there were enough features 

 developed to identify it. 



The chief characteristics are the yellowish-brown pileus, yellow flesh, 

 yellow tubes and the yellow stem with the large reticulations. 



H. Laceripedes. Stem elongated, coarsely pited or deeply and lacu- 



nosely reticulated. 



