BUSSrLA, ( 1 



On the gronnd. 



Gregarious. Pilaus 4r-o in. broad, at first convex, the 

 margin broadly folded inwariis, convex, at length more or 

 less depressed ■with the margin somewhat vaulted, flestij- in 

 the centre, the margin thin, furrowed and tubercled, the 

 striae appearing as if a glutinoos membrane were stretched. 

 over them, dirty yellow, rather brittle. GUIs forked, dirty 

 white or yellowish, moderately broad, connected by veins. 

 -Stem 3—4 in. high, above 1 in- thick, obtuse, incrassited 

 at the base, ruggedly hollow within, as if eaten by snails, 

 white or with a dirty yellow tinge, depresso-tomentose, 

 beneath the gills minuiely pitted longitudinally, flesh rather 

 yellow. Highly acrid, odour very strong, and penetrating, 

 empyrenmatic, somewhat resembling that of prnssic acid, but 

 exceedingly disa^e^ble. '* (Berk.) •r-- ^ ^ ^ ~- ^ 



Russulacgnsobriiia. Fr. 



Acrid. Pileus about 3 in. across, flesh rather thin at the 

 disc, becoming membranaceous at the margin, fragile, 'white, 

 greyish below the thick, viscid, separable cuticle ; campanu- 

 iate then expanded, at length depressei, dark grey or olive- 

 brown, margin spreading, even, although membranaceous ; 

 gills at first free, then appearing to be adnate owing to 

 the expansion of the piiens, broad, crowded, clear white, 

 forked, and with shorter intermediate ones; stem 2-3 in. 

 long, almost an inch thick, equal, even, glabrous, clear 

 white, at length becoming grey, solid but soft; spores 

 nearly smooth, w^hite 8—9 x 7 fi~ 



S>2ssula consohrina. Fries, Epicr., p. 359; Cke., Hdbk., p. 

 329 ; Cke., Illnstr., pL 105-5. 



In woods. 



Yery acrid; easily known by the even, umber or olive- 

 brown pileus, which ha-s tisually more or less of a grey tinge. 

 The cuticle often becomes more or less broken up at the margin. 



Yar. sororia. Fries, Hym. Enr., p. 447 ; Cke., Ulustr., pL 

 1057 ; Cke., Hdbk., p. 329. 



.Size, colour, and habit of the typical form ; differing in the 

 striate margin of the pileus ; gills rather distant, with many 

 intermediate shorter ones, but rarely forked, connected by 

 veins. 



In woods, &c. 



