TKICHOLOMA. 213 



Agaricns arcuatus, Bulliard, Champ. Fr., t. 589, f. 1 ; Cke., 

 Hdbk., p. 39 ; Cke., Illustr., pi. 218a. 



Among grass in pastures, &c. 



Colour and size variable. Allied to T. panaeolum and 

 T. melaleucum ; the furmer differs in the greyish gills, and 

 the latter in the white flesh. 



Tricholoma oreinum. Fr. 



Pileus about 1 in. across, flesh rather thick, white ; convex 

 then plane, obtuse, even, glabrous, fuscous then livid; gills 

 rounded behind, free, crowded, plane, up to 1 line broad, 

 white ; stem about 1 in. long, and I2- line thick, with a slight 

 swelling at the base, otherwise equal, whitish, apex witli 

 white squamules, solid. 



Agaricus (Tricholoma) oreinus, Fries, Syst. Myc, i. p. 52; 

 €ke., Hdbk., p. 39; Cke., Illustr., pi. 218b. 



On heaths, &c. 



The gills are equally broad up to the margin, beyond 

 which they project, a character that separates this species 

 from T. humilum. (Fries.) 



Tricholoma album. Schaeff. 



Entirely white. Taste acrid. Pileus 3-4 in. across, flesh 

 thick ; convex then expanded, very dry, even, disc sometimes 

 yellowish ; gills emarginate, about 3 lines broad, somewhat 

 crowded, not changing colour ; stem about 3 in. long and 

 ^ in. thick, attenuated upwards, almost naked, elastic, solid. 



Agaricus alhus, Schaeffer, t. 256 (slender form); Fries, 

 Icon., p. 39, pi. 43 ; Cke., Hdbk., p. 39 ; Cke., Illustr., pi. 65 

 {too ochraceous). 



In woods. 



Size very variable, sometimes very robust, at others 

 slender. Entirely pure white, sometimes becoming yellowish, 

 especially the disc. Smell weak but taste bitter. (Fries.) 



Tricholoma leucocephalum. Fr. 

 Pure white. Smell strong, joleasant, resembling new 

 meal. Pileus about iMn. across, flesh thin, compact, tough ; 

 convex then plane, obtuse, even, moist, glabrous, but covered 

 with pure white silky down when young; margin acute, 

 spreading, glabrous ; gills rounded behind and almost free, 

 crowded thin, quite entire, clear white ; stem up to 2 in. 



