270 FUNGUS-FLORA. 



openings minute, unequal, yellowish-olive ; stem firm, cla- 

 vate, bulbous, the thin apex yellow, remainder more or less 

 covered with crimson blotches or entirely crimson, vaguely 

 reticulated or punctate with red, solid ; spores ?. 



Boletus olivaceus, Schaeffer, tab. 105 ; Cke., Hdbk., p. 255. 



In woods. A rare species that I have not seen, neither 

 can I find any specimens in herbaria, hence cannot give 

 form or size of spores. Flesh of pileus in. or more thick, 

 tinged yellow, becoming blue when cut ; this colour soon 

 fades, leaving the flesh white. Stem l|-2 in. long, 1-1^ in. 

 across at thickest part, thinner upwards. Known by incurved 

 margin when young, glabrous pileus, and reddish, vaguely 

 reticulated obese stem. 



Boletus fragrans. Vitt. 



Fasciculate or solitary. Pileus 14 in. across, convex, 

 dark-brown or umber-brown, often wavy, slightly tomentose, 

 margin incurved; flesh very thick, yellowish, sometimes 

 unchangeable, at others changing to green or blue, and finally 

 becoming reddish when broken ; tubes shortened round the 

 stem and almost free, ^ in. or more long, openings small, 

 roundish, yellow then greenish ; stem at first stout, ovate, 

 usually tapering at the base, then lengthening and becoming 

 thinner upwards, even, variegated with yellow and red, 

 solid ; spores pale olive, elongate-fusiform, 10-12 x 4 /*. 



Boletus fragrans, Vittadini, Fung. Mang., p. 153, t. 19 ; 

 Stev., Brit. Fung., p. 34. 



In woods, under oaks, &c. Pileus bronze-brown, some- 

 times with purple shades. Often grows in dense clusters, 

 and in this particular differing from any other British 

 species. Very good for eating. 



Boletus aestivalis. Fr. 



Pileus 5-8 in. across, convex, whitish or pale buff, minutely 

 silky, often cracking into areolae, margin often wavy, flesh 

 very thick, white under the cuticle, lower down and that of 

 stem yellow, unchangeable ; tubes shortened round the stem, 

 ^ in. or more in length, openings minute, equal, yellow; 

 stem about 3 in. long, very thick, more or less bulbous, 

 subconical, pale yellow or whitish, even, solid, flesh at base 



