BOLETUS. 261 



A. Pores yellow at the openings. 

 * Ring present on stem. 



Boletus luteus. Linn. (figs. 4-6, p. 184.) 



Pileus 3-4 in. across, convex, covered at first with a thick 

 coat of dirty, brown gluten, which eventually disappears, 

 leaving the surface paler, and with darker streaks, flesh thick, 

 whitish, unchangeable; tubes about ^ in. long, adnate, 

 openings roundish, about ^ mm. across, yellow, tinged with 

 cinnamon when old ; stem 3-4 in. long, in. thick, subequal, 

 firm ; above the large membranaceous, whitish ring, yellow 

 and rough with darker raised points, below the ring, 

 whitish, solid ; spores cylindric-fnsiform, cinnamon, 10 x 3 /A. 



Boletus luteus, Linn., iSuec., n. 1247 ; Cke., Hdbk., p. 250. 



On the ground, usually in pine woods. Distinguished by 

 the very glutinous dirty- brown pileus and the ample whitish 

 ring, which is sometimes more or less tinged with pink. 



Pileus 3-4 in. broad, dingy yellow, convex, covered at 

 first with thick brown gluten, which is soon washed off, but 

 the pileus remains slightly viscid, and clothed with very 

 minute matted silkiness. Flesh at first firm, whitish, not 

 changing. Tubes adnate, dull yellow, nearly simple, their 

 orifices round, or slightly waved. Spores ochraceous, ferru- 

 ginous. Stem 4 in. high or more, ^ in. thick, straight or 

 flexuous, at first white, but soon sordid, hoary beneath the 

 white persistent ring, glandular above, sometimes the whole 

 surface is glandular. (Berk.) 



Boletus elegans. Schum. 



Pileus 2-4 in. across, convex then almost plane, viscid, 

 tawny-golden, or sometimes clear yellow, flesh rather thick, 

 pale-yellow ; tubes slightly decurrent, about ^ in. long, 

 openings minute, simple, deep sulphur-yellow; stem firm 

 34 in. long, in. thick or more, unequal or subequal, gulden- 

 yellow, then more or less rufescent, punctate above the 

 whitish, fugacious imperfect ring ; spores elliptical. 



Boletus elegans, Schum., in Fries, Epicr., p. 409 ; Fries, 

 Sverig iitl Svamp., t. 76 ; Cke., Hdbk., p. 250 ; Stev., Brit. 

 Fung., p. 168. 



In woods, especially larch. 



Pileus 2-4 in. broad, convex, smooth, covered with a. 



