70 FUNGUS-FLOKA. 



On the ground under trees. 



Habit nearly that of R, ochroleuca, which it also resembles 

 in colour, but differing in the darker and minutely granular 

 disc, as well as the mealy stem, which is not at all grey ; 

 the cuticle of the pileus is continuous from the margin for 

 Bome distance along the edge of the gills. (Cooke.) 



The disc is often granular in B. ochroleuca, and the present 

 species is best distinguished by the granular, persistently 

 white stem, gills narrowed behind, and with projecting 

 c^'Stidin. B. claroflava differs in the sfem turning gre^^ and 

 the gills yellow. Finally, B. citrina differs in the clear 

 lemon-yellow pileiis and mild taste. 



Russula foetens. Fr. 



Acrid. Smell foetid. Pileus 3-6 in. across, flesh rather 

 thin, rigid and fragile, pallid ; snbglobose then expanded 

 and becoming depressed, pellicle adnate, not separable, viscid 

 in damp weather, dingy ochraceous yellow, becoming pale ; 

 margin membranaceous, sulcate for a considerable distance 

 from the edge, at length tuberculose, incurved at first ; gills 

 adnexed, crowded, connected by veins, with numerous forked 

 and shorter ones, 2-3 lines broad, whitish, when young 

 exuding drops of water ; stem about 2 in. long, ^-1 in. thick, 

 whitish, stuffed then hollow; spores 8-10 yx; cystidia 

 abs^^nt. 



Bussula foetens, Fries, Epicr., p. 356 ; Cke., Hdbk., p. 329; 

 Cke., lllustr., ^dI. 1046. 



In woods. 



Large, very rigid, easily known by the penetrating em- 

 pyreumatic smell ; pileus at length upturned and wavy. 

 Gills (free at first) thin, becoming slightly tinged yellow, 

 dingy when bruised. (Fries.) 



Smell sometimes almost none, known by the rigid, dingy 

 ochraceous pileus with a sulcate, tuberculose margin. Burst- 

 ing through the ground like a ball, then expanding. 



Var. sub foetens ; Bussida siih foetens, Smith, Journ. Bot., 

 1873, p. 337 ; Cke., Hdbk., p. 329 ; Cke., Hlustr., pL 1047. 



Pileus buUate, rather viscid, disc fleshy, margin somewhat 

 membranaceous; gills thick, distant and branched; stem 

 not so stout as in B. foetens ; sm dler, colour somewhat dis- 

 agreeable; taste slightly acrid; spores 10 x 8 /x. 



