144 THE POLYPORACEAE OF WISCONSIN. 



tonianus, B. collinitus and B. versipellis. A few were also collected at 

 Sparta, and one specimen by McKenna near Blanchardville. 



The largest specimen of this most showy and beautiful little Boletus 

 was 7 cm. in diameter ; stipe 7 cm. in length and 7 mm. thick. The pi- 

 leus is bright golden yellow more or less streaked with crimson. If the 

 plants grow unsheltered in the sun, the color is somewhat darker, and 

 the streaks of red are more numerous and prominent. The pileus is 

 very viscid and sticky. The stem is slender, usually more or less bent, 

 firm, dotted with dark-brownish or blackish glandules from top to bot- 

 tom. Peck says in his description that the stipe is "not at all annu- 

 late," but I find frequently that they are quite distinctly annu- 

 lated at first, but this annulus soon disappears. The glandules are per- 

 sistent even in drying. This distinguishes it from B. flavidus Fr., B. 

 luteus and B. subluteus differ in their paler color and the more per- 

 sistent annulus. Reported edible by Mcllvaine (16, p. 413). 



Boletus punctipes Peck (Plate XIX, fig. 64). 



Pileus convex or nearly plane, glutinous when moist, yellow, the thin 

 margin at first minutely grayish-pulverulent, becoming recurved with 

 age ; tubes short, nearly plane, adnate, small, subrotund, at first brown- 

 ish, then sordid ochraceous ; stem rather long, tapering upward, gland- 

 ular-dotted, rhubarb-yellow; spores 7.6 to 10 microns long, 4 to 5 mi- 

 crons broad. 



Pileus 5 to 8 cm. broad ; stem 5 to 8 cm. long, 6 to 10.5 mm. thick. 



A few specimens of this species were collected near Hazelhurst and 

 Star Lake in August, 1904. The largest was 6 cm. in diameter, the 

 stipe 6 cm. long and 8 mm. thick. The pileus was very viscid, pale yel- 

 low, thick; the stipe pale yellowish brown with darker dots all over; 

 stout, tapering upwards. Pores in the young specimens pale brownish 

 yellow like the stipe. Drops of a cloudy liquid are exuded from the 

 pores of young specimens. 



Boletus collinitus Fries (Plate XX, fig. 68). 



Pileus convex, even, becoming pale when the brown gluten separates 

 from it, flesh white ; tubes adnate, elongated, naked, the mouths two- 

 parted, pallid, becoming yellow ; stem firm, often tapering downwards, 

 somewhat reticulate with appressed squamules, white, becoming brown. 

 Woods of pine or fir. 



Several specimens were found near Crandon. They were plainly 

 different from B. subluteus Peck, which grew abundantly at the same 

 place, by their yellow pores and dotless stems. 



