RUSSULA. 65 



Bussula mustelina. Fries, Epicr., p. 351 ; Cke., Hdbk., p. 

 321 ; Cke., lUustr., pi. 1018. 



In woods. 



The only species belonging to the present section having 

 a yellow or brownish pileus. There is no tendency to turn 

 black in any part. 



Sect. n. TASTE ACEID. 

 * Gills yellow or ochraceous. 

 f Pileus yellow or ochraceous. 



Hnssnla fellea. Fr. 



Acrid. Pileus 1-3 .in. across, flesh thin, straw-colour ; 

 convex then plane, polished, glabrous, pale ochraceous or 

 straw-colour, disc darker as a rule, margin even, slightly 

 striate when old; pellicle of the pileus closely adnate, thin; 

 gills adnate, crowded, thin, narrow, slightly connected by 

 veins, mixed with a few shorter ones, bifid behind, straw- 

 colour ; stem about 2 in. long, J in. thick, equal, even, white 

 then straw-colour, spongy and stuffed then hollow; very 

 acrid. 



Busmla fellea. Fries, Epicr., p. 354 ; Cke., Hdbk., p. 330 ; 

 Cke., Illustr., pi. 1058. 



In woods, especially beech. 



Smell none. Eeadily distinguished by the pale ochrace- 

 ous straw-colour of every part, and the intensely acrid taste. 

 The gills sometimes exude drops of water in damp weather. 



Superficially resembling E. ocJiracea, but readily distin- 

 guished by the very acrid taste. 



Russula claroflava. Grove. 



Acrid ? Pileus 2-3 in. across, flesh rather thick, white, 

 yellow beneath the cuticle; convex, at first bullate, then 

 plane, slightly depressed in the centre, deep chrome-yellow, 

 margin turned down, at length patent, even or slightly 

 striate when old, often paler than the disc, but sometimes of 

 a deeper colour, cuticle not easily separable ; giUs scarcely 

 crowded, adnexed and narrowed behind, not united behind, 



VOL. m. F 



