BOLETUS. 273 



tomentose, margin obtuse, deep chestnut-colour, flesh whitish, 

 unchangeable, tinged red under the cuticle ; tubes about 

 in. long, almost free from the stem, openings minute, 

 rounded, white then sulphur-yellow, stem 2-3 in. long, -1 

 in. thick, variable, sometimes bulbous, at others attenuated 

 downwards, paler than the stem, solid, flesh brownish at the 

 base; spores very pale yellow, elongato- fusiform, 15-16 X 

 5 fi. 



Boletus vaccinus, Fries, Epicrisis, p. 420; Fries, Sverig. 

 Svamp. tab. 51. 



In woods, especially under beech-trees. Allied to Boletus 

 badius, but known by the minutely tomentose, dry pileus, 

 and the much smaller openings of the pores, that rarely 

 exceed ^ mm. across. Often subcaespitose. Although Fries 

 says the flesh is unchangeable, yet in the section of his fig. 

 in Sverig. Svamp. it is tinged blue. I have never observed 

 any trace of blue. 



Boletus Rostkovii. Fr. 



Pileus 34 in. across, convex or almost plane, dingy olive- 

 brown or rufous, very minutely tomentose, often areolately 

 cracked, interstices pale ; flesh thick, compact, white, 

 becoming tinged red when cut, here and there a shade of 

 blue ; tubes about ^ in. long, pale yellow-green, openings 

 irregularly angular, compound, about | mm. diameter ; stem 

 obconic, 1 in. across at the apex, tapering almost to a point, 

 about 1 in. long, smooth, pale reddish -yellow, solid, flesh 

 tinged like that of pileus ; spores elongato-fusoid, pale olive, 

 20 x 5 p. 



Boletus Rostkovii, Fries, Hym. Eur., p. 521. 



Boletus lividus, Eost., Sturm, Or. Fl., t. 18. 



On the ground under trees. Known at once by the short 

 obconic stem and the flesh becoming tinged with red when 

 broken. 



Boletus purpurascens. Eost. 



Pileus 3-4 in. across, convex then almost plane, dry, 

 glabrous, deep purple with a tinge of brown, flesh thick, 

 compact, dirty grey, streaked or marbled ; tubes adnate, 



1 in. or more in length, dingy yellow, openings same colour, 

 small, irregularly circular, about -|- mm. across ; stem about 



2 in. long, |- in. thick at the apex, tapering downwards and 

 VOL. L T 



