262 FUNGUS-FLORA. 



glutinous substance, which gradually disappears, of a tawny 

 or yellow colour, often irregularly spotted, and with a 

 reddish tinge. Tubes of the hymenium yellow and decur- 

 rent, and adnate with the stipes, the orifice minute, uniform. 

 Flesh thick, pale-yellowish, scarcely changing on being cut. 

 Stipes solid, 2-4 in. long or more, firm, half an inch or more 

 in diameter, somewhat attenuated upwards, or subequal, 

 pale towards the upper part, especially above the veil, where 

 it is generally dotted, below it is usually more or less 

 streaked or stained with dull red. Veil very conspicuous, 

 passing in the young state from the margin of the pileus 

 to the stipes, to which it afterwards remains more or less 

 attached. (Grev.) 



Boletus flavus. With. 



Pileus 3-4 in. across, compact, firm, convex then ex- 

 panded, smooth, even, yellow, covered with an evanescent 

 tawny gluten, flesh thick, pale yellow, unchangeable ; tubes 

 about ^ in. long, abruptly adnate, openings angular, com- 

 pound, large, irregular, 1 mm. across, yellow, then tinged 

 with cinnamon ; stem 3-4 in. long, about |- in. thick, equal 

 or slightly thickened at the base, furnished at maturity 

 with the remains of the membranaceous ring, above which 

 the stem is vaguely reticulated and dingy yellow, below the 

 ring, even, yellow tinged with rufous, flesh yellow, dingy at 

 the base ; spores pale olive, elongate-fusiform, 10-13 x 4 p.. 



Boletus flavus, Withering ; Fries, Hym. Eur., p. 497 ; Cke., 

 Hdbk., p. 250. 



In woods. Allied to Boletus elegans and B. luteus ; distin- 

 guished from the former by the large angular openings of 

 the pores and the reticulated apex of the stem ; from the 

 latter by the bright yellow pileus after the gluten has dis- 

 appeared, and by the reticulate, not punctate apex of the 

 stem. 



Pileus 2-5 in. broad, compact, in moist shady places 

 glutinous and bright yellow, in exposed situations dry and 

 brown ; flesh pale yellow, not changing ; tubes unequal, of 

 a golden sulphur, wavy, sometimes with their orifices ruddy, 

 ring dirty yellow, membranaceous. Stem 2-3 in. high, 

 6-9 lines thick, yellow spotted with purple, thickened at the 

 base, reticulated above the ring. (Klotsch.) 





