294 PUNGUS-FLOEA. 



minutely granulated, owing to the breaking tip of the 

 cuticle, colour variable, whitish, brown, ochraceous-orange, 

 &c. ; flesh thick in the centre, thin towards the margin, 

 white, unchangeable ; tubes ^-|- in. long, shorter round the 

 stem and almost free, openings subangular, compound, 

 irregular ^1 mm. across, white then dingy brownish-olive ; 

 stem 5-7 in. high, l-lf thick at the base, conical, pale, 

 rough with dark fibrous squamules that become larger 

 downwards, solid ; spores dingy olive-brown, elongato- 

 fusiform, 18-20 X 6 ju. 



Boletus scaber. Pries, Syst. Myc. i. p. 293 ; Cke., Hdbk., 

 p. 269. 



In woods. Esculent, and good flavour. Distinguished 

 by the conical scabrid stem, white, unchangeable flesh, and 

 the pores first white, then dingy. 



Pileus 3-7 in. or more broad, pulvinate, viscid when 

 moist, very variable in colour, white, cinereous, brown olive, 

 deep orange, or vermilion, smooth or minutely downy, the 

 down sometimes collected into minute fasciculate scales ; 

 flesh very thick, soft, not changeable in young specimens, in 

 older ones reddish-grey when bruised, and sometimes black ; 

 tubes white, pulvinate, stained with the yellow-brown 

 spores, their orifices often ferruginous before the expansion 

 of the pileus, minute, round ; stem 6 in. or more high, 

 attenuated upwards, squarrose with black or orange scales, 

 sometimes marked with coarse raised lines. At first the 

 stem is ovate and the pileus very narrow. There are 

 frequent traces of a floccose veil. (Berk.) 



Boletus niveus. Pr. 



Pileus 3-5 in. across, very convex, even, glabrous, pure 

 white when young, and either remaining so, or becoming 

 more or less tinged with green ; flesh white, very thick, 

 becoming greyish when broken ; tubes shortened round the 

 stem but not entirely free, ^-f in. or more in length, whitisb, 

 becoming tinged with grey, openings rounded, small, about 

 ^ mm. across ; stem 3-6 in. long, 1 in. or more thick at the 

 base, becoming gradually attenuated upwards, whitish, 

 becoming grey when bruised, more or less rough with white 

 squamules, or wart-like elevations, solid ; spores colourless, 

 elliptical, 9-10 X B fi. 



