156 CRYPTOGAMIA FUNGI. 



that, while the stipes is confined within the volva, the cel- 

 lules which occupy the greater part of its substance, are 

 so much vertically compressed as to resemble crowded ho- 

 rizontal short lines ; on the other hand, when it is mature, 

 the cellules are roundish. It is probable, therefore, that 

 the mere vertical dilatation of so many compressed cavi- 

 ties greatly facilitates this phenomenon." Previous to its 

 eruption from the volva, the fungus was scentless, but now 

 it diffuses all round a strong and peculiarly offensive smell, 

 proceeding from the green slimy matter which fills the 

 cells of the pileus. Flies are so fond of this offensive mat- 

 ter, that they crowd to the plant and devour it. The 

 smell, it is remarkable, is less offensive when the Phallus 

 is held near the nose than when at a distance. The white 

 part of the stalk may be eaten, and is rather agreeable than 

 otherwise. 



88, BOLETUS. 



1 . B. luteus, stalk solid, cylindrical, with a veil or ring ; pileus 

 convex, yellowish, slimy, the margin circular ; tubes yellow, with 

 small circular orifices. WITH. iv. 352, BOLT. Fung. t. 84. 

 Sow. Fung. t. 265. HOOK. Scot. ii. 27. GREV. Fl Edin. 403. 

 Crypt. Fl. t. 183. 



Hob. Woods and hedge bottoms, common. Aut. 



I have seen a specimen of this species with a stalk thicker 

 than a man's wrist, and a pileus a foot in diameter ; but it 

 is seldom larger than the common mushroom. 



2. B. subtomentosus, stalk solid, smooth, yellow, streaked with 

 red ; pileus convex, brown, velvetty, dry, the margin circular ; 

 tubes yellow with large angular pores GREV. Fl. Edin. 404. 



Hab. Woods. Blackadder plantations. Aug. 



3. B. luridus, stalk bulbous, thick, reticulated, red ; pileus very 

 convex, olivaceous, smoothish ; flesh very thick, changing, when 

 cut, to blue ; tubes round, yellow, with red orifices. GREV. Fl. 

 Edin. 404. Crypt. Fl. t. 121. B. rubeolarius, WITH. iv. 350. 

 Sow. Fung. t. 250. B. bovinus, BOLT. Fung. t. 85. 



Hab. Plantations. In a fir plantation near Longformacus. 



4. B. scaber, stalk tapered upwards, thick, white, rough with a 



