288 PUNGUS-FLOEA. 



yellow with blood-red reticulations above, solid; spores 

 brownish, elliptic-fusiform, 11-13 X 4-6 /a. 



Boletus satanas, Lenz., f. ; 31 ; Fries, Hym. Eur., p. 51 0, 

 Hussey, vol. i. t. 7 ; Cke., Hdbk., p. 268 ; Stev., Brit. Fung., 

 p. 177. 



In woods. Pileus variable in colour, but always pale, com-' 

 monly wMtisb, tinged buff, yellow, or pink, often irregular 

 and wavy. Very showy, smell and taste pleasant, but very 

 poisonous. Known by the very stout, broadly fusiform 

 stem having red reticulations at the apex, the blood-red 

 mouths of the pores and the pale pileus. 



Pileus sometimes 8 in. across; commonly less, pulvinate, 

 soft to the touch, naked, dry, smooth, whitish, leather-buff, 

 or greenish, often shading into a red tinge ; flesh solid, be- 

 coming soft, tender, and juicy, white, turning reddish, then 

 blue ; stem 2-3 in. high, thick, finely reticulated above, the 

 reticulations purple-crimson, often vanishing in age, the 

 stem growing streaked below. (Cooke.) 



Boletus luridus. Schaeff. 



Pileus 3-6 in. across, convex, minutely tomentose, colour 

 variable, generally dingy brown with an olive tinge, rather 

 viscid when moist, flesh very thick, firm, and like that of 

 the stem, yellow, becoming indigo-blue at once when broken ; 

 tubes |— J in. long, shortened round the stem and almost or 

 quite free, greenish-olive, openings roundish, about J mm. 

 across, edges of dissepiments vermilion, orange, or reddish- 

 brown ; stem usually alrnost globose when young, after- 

 wards remaining bulbous or becoming ventricose and elon- 

 gated, vermilion or yellow with red blotches, sometimes 

 vaguely reticulated with red lines ; spores yellowish, oblong- 

 fusiform, 12 X 4 /x. 



Boletus luridus, Schaeffer, t. 107 ; Cke., Hdbk., p. 258. 



In woods and under trees in pastures. Whole plant hard 

 and firm ; the yellow flesh changes at once to indigo blue 

 when broken in contact with the air, the blue colour soon 

 fades, leaving the flesh a permanent dirty yellow. Every 

 part laecomes blackish when bruised. 



The stem is not distinctly reticulated by raised lines as 

 in several species, but the darker markings take at times 

 a more or less netted arrangement. 



