BOLETUS. 295 



Boletus niveus, Fries, Obs. Myc. i. p. 111. 



Boletus scaber, tar. niveus, Fries, Hym. Eur., p. 516. 



On the ground in woods. The present species, as shown 

 by the synonymy, was first described as a distinct species by 

 Fries, and later was considered by the same authority as a 

 variety of Boletus scaber. During the annual fungus foray 

 of the Windsor and Eton Scientific Society, held at Burnham 

 Beeches in October, 1891, the present species was found in 

 abundance, and although the general form, size, and conical 

 stem suggest B. scaber, nevertheless I am inclined to accept 

 the first determination of Fries, and consider the present as 

 a distinct species, known from B. scaber by the white pileus 

 usually becoming more or less green with age, the small 

 adnate and persistent wart-like squamules on the stem, the 

 tendency of every part to become greyish when bruised, and 

 more especially by the broadly elliptical colourless spores, 

 which are very unusual in the genus. 



Subgregarious. Stem solid, elongated, 3-5 in. long, 

 whitish, becoming considerably attenuated upwards, scabrous, 

 with white squamules or rough points arranged somewhat 

 in a reticulate manner, greyish when handled, base with 

 white tomentum, not bulbous. Pileus pulvinate, convex, 

 fleshy, soft, even, glabrous, white, becoming greenish, 2 in. 

 broad, margin patent, even, hymenium plane. Flesh very 

 soft, white, grey when touched with the fingers. Tubes 

 white with a greyish tinge, longer than thickness of flesh of 

 pileus. Pores white, minute, rounded. (Fries.) 



Boletus versipellis. Fr. 



Pileus 3-5 in. across, convex, dry, at first tomentose, then 

 minutely squamulose, eventually often smooth, often fur- 

 nished at the margin with fragments of the membranaceous 

 veil, flesh thick, unchangeable ; tubes free, rarely exceeding 

 3- in. in length, white, plane, openings minute, edges of 

 dissepiments grey ; stem 4-5 in. long, 1^-2 in. thick at the 

 base, attenuated upwards, ruguloso-squamulose, whitish or 

 tinged with pale buff, yellow or pink, solid. 



Boletus versipellis, Fries, Bolet. p. 13, Stev., Brit. Fung., 

 p. 179. 



In woods and amongst heather, &c. 



Distinct from Boletus scaber, but on account of agreement in 



