266 FUNGUS-FLORA. 



Stem attenuated downwards. When the pileus is cracked 

 the cracks are yellowish. Flesh white or pallid, not red 

 below the cuticle. After the olive tomentuin has dis- 

 appeared the pileus is brighter, variable. (Fries.) 



Var. radicans. Mass. 



Pileus expanded, usually undulated, tomentose, bright 

 yellowish olive-green ; tubes greenish-olive at maturity, 

 stem whitish below, yellow and strongly grooved above. 



Boletus radicans, Krombholtz, t. 48, fig. 1-6. 



In woods. Differing from the type in the points indicated, 

 in size and other respects similar. 



Boletus cruentus. Vent. 



Pileus 34 in. across, convex then almost plane, soft, 

 minutely tomentose, olivaceous with a reddish tinge, be- 

 coming red at once when bruised, flesh f in. thick, pale 

 yellow changing to red when cut; tubes shortened round 

 the stem and almost free, -| f in. long, pale yellowish-olive, 

 openings minute, subangular, regular, about ^- mm. diameter ; 

 stem 23 in. long, tapering upwards, 11^- in. thick at the 

 incrassated base, which ends in a tapering rooting portion, 

 yellow with reddish markings, minutely flocculose, solid, 

 flesh yellow, becoming red like that of the pileus when cut ; 

 spores elliptic-fusiform, pale olive, 1416 x 5 p. 



Boletus cruentus, Venturi, t. 43, f. 3 & 4; Fries, Hym. 

 Ear., p. 507. 



On the ground, under beeches. Smell strong. Not 

 agreeing in every particular with Venturi's species, but 

 corresponding in the essential features of the flesh becoming 

 red when cut, and rooting base of stem. 



Boletus sanguineus. With. 



" Tubes yellow ; pileus blood-red, changing to a rich 

 red-brown ; stem-yellow, with broad crimson streaks. 



" Tubes yellow, a little decurrent, unequal in length, but 

 mostly about ^ of an in. long, changing to deep blue when 

 broken. Pores lemon-yellow, angular. 



" Pileus crimson, semiglobular, f-lf in. over ; when old, 

 rich red-brown, near 3 in. over, and the edge turning up. 

 Flesh white, a little tinged with crimson next to the skin, 

 changing slowly to a bluish cast when wounded. Stem, 



