280 FCNG US-FLORA. 



attenuated, smooth, rather paler than the pileus, without a 

 ring, solid, flesh with a tinge of brown ; spores elongato- 

 fusiform, olive, 16 X 4 p.. 



Gregarious, but not caespitose. Amongst sphagnum in a 

 swamp. Without any very near ally, probably nearest to 

 slender forms of Boletus badius, from which it is at once dis- 

 tinguished by the very thin flesh of the pileus, brighter 

 colour, long slender stem, short tubes, &c. 



Boletus bovinus. Linn. 



Fasciculate. Pileus 2-3^ in. across, convex then almost 

 plane, margin acute, pale reddish-yellow, glabrous, viscid, 

 shining when dry, with traces of the gluten remaining as 

 fibrils or ridges, flesh rather thin, whitish, unchangeable ; 

 tubes subdecurrent, up to in. deep, openings compound, sub- 

 angular, often elongated radially, |-1| mm. across, dingy 

 yellow, then brownish-cinnamon ; stem 24 in. long, ^ in. 

 or more thick, equal, even, coloured like pileus, apex often 

 yellow; spores elongato- fusiform, pale olive, 12-14 x 5 /x. 



Boletus bovinus, Linn., Suec., n. 1246 ; Fries, S. M. i. p. 

 388 ; Cke., Hdbk., p. 252. 



Heathy fir woods, &c. Pileus rather thin for a Boletus, 

 stem thin usually elongated, clustered or gregarious. 



Gregarious, fasciculate ; pileus 1-2^ in. broad, when young 

 hemispherical, margin white and tomentose, disc and top of 

 stem purplish, base rhubarb-coloured; when full-grown 

 convex, expanded, margin still turned in, very glutinous, 

 dull orange-yellow, or deep buff; flesh tinged with the colour 

 of the pileus, not changeable. Tubes resembling the pores of 

 Merulius laclirymans, very shallow (^ in.), compound, dirty 

 yellow, not easily separating from the pileus. Stem 2-3 in. 

 high, | in. thick, subtomentose, not diffused gradually but 

 rather abruptly into the pileus, of the same colour, but 

 streaked with watery lines, attenuated below, or subequal ; 

 bulbous when very young. Spores elliptic. Smell strong, 

 like Marasmius oreades. (Berk.) 



Boletus granulatus. Linn. 



Pileus 3-4 in. across, convex, then more or less expanded, 

 at first viscid with reddish-brown gluten, yellowish when 

 the gluten has disappeared ; tubes up to ^ in. long, adnate 

 and often with an indication of being decurrent, yellow, 



