BOLETUS. 277 



small rounded openings of the tubes, and the pileus covered 

 with a dark coloured bloom. 



Boletus variegatus. Swartz. 



Pileus 3-5 in. across, convex then expanded, obtuse, margin 

 acute, dingy yellow or pale tawny at the disc, paler yellow 

 towards the margin, covered with minute pilose, tawny 

 squamules, viscid when moist, iiesh thick, yellow, becoming 

 pale blue when cut ; tubes |- in. long, adnate, openings small, 

 unequal, yellowish, then cinnamon or brownish ; stem 2-3 in. 

 long, up to 1 in. thick, subequal, firm, pale yellow, solid ; 

 spores pale olive, elliptical, 6 x 3 /x. 



Boletus variegatus, Swartz, in Vet. Akad. Handl., p. 8 ; Cke., 

 Hdbk., p. 253. 



In fir woods, amongst heather, &c. Often gregarious. 

 Pileus tawny and minutely adpressed, squamulose at the disc, 

 becoming pale yellow towards the margin, in some instances 

 the flesh does not become blue on being cut. Fries says that 

 the stem is sometimes reddish. 



Pileus 3 in. or more broad, convex, fasciculato-squamose ; 

 scale small, tawny-yellow ; flesh changing to blue when cut ; 

 margin tomentose, subinvolute ; tubes very narrow, dull yel- 

 low, blue when bruised, adnate ; resembling somewhat those 

 of B. boviniis ; stem 3 in. high, J iu. thick, granulato-pulve- 

 rulent, very neat, firm, yellow, obtuse. Smell unpleasant, 

 taste not so. (Berk.) 



Stem naked, 1-3 in. long, ^1 in. thick, subequal, gla- 

 brous, smooth, cylindrical, every part yellow, rarely reddish. 

 Flesh of the stem pale yellow, unchangeable, elastic, not 

 spongy. Pileus plano-convex, sometimes covered with minute 

 squamules, sometimes glabrous, dry, slightly viscid during 

 rainy weather, yellow, margin acute, even, hymenium slightly 

 concave when young, then plane; diameter 3-5 in., flesh pale 

 yellowish, soft, not elastic, rather thick, usually unchange- 

 able, rarely tinged with blue when broken. Tubes shorter 

 than the thickness of the flesh of the pileus, adfixed, yellow- 

 ish-grey; pores obscure yellow, when young almost spadi- 

 ceous, then grey or greenish-yellow, equal, minute, subrotund 

 or obtusely angular. (Fries.) 



Boletus aereus. Bull. 

 Pileus 3-4 in. across, convex, glabrous, dark brown with a 



