Tricholoma 



AGARICACE^E 



31 



The species, except 91, 98 and 149, grow on the ground, the 

 larger usually grow in upland woods, the smaller in pastures. Mostly 

 autumnal ; some late ; section Guttata is usually vernal. Many have 

 a pleasant odour of meal, a few have a disagreeable odour ; some 

 are edible, a few suspicious or poisonous. Species 73 — 152 



Fig. 15. — Section of Tricholoma personatum Quel. 



One-third natural size. 



The separation of the stem from the hymenophore is 



shown at A. 



A. Pileus viscid when damp, pubescent, fibrillose or scaly, not 

 scaly- torn. Stem fibrillose. Flesh, except 77, not hygro- 

 phanous. 



a. Limacince. Pileus fleshy. Stem solid, except 73a, 76, and 79. 

 Gills not changing colour or becoming rufescent. 73 — 79 



Gills changing colour usually to rufescent, commonly red- 

 spotted. " 80 — 89 



b. Genuinoz. Pileus torn into scales or fibrils, not viscid or 



hygrophanous, moist in 94. Taste sometimes bitter and 



disagreeable. Odour, except 93, generally not unpleasant 



or none. 

 Gills, except 94, not changing colour, or becoming rufous or 



black-spotted. 90 — 95 



Gills rufescent or becoming grey, usually marked with rufous 



or blackish spots. 96 — 101 



<r. Rigidce. Pileus, except 106, punctato-granulate or broken up 

 into smooth squamules, not viscid, scaly-lioccose or fibril- 

 lose. Flesh in stout species cartilaginous-hard, in thin species 

 fragile. Odour of the majority of the species unpleasant. 

 Gills unchanging white or becoming hyaline-whitish, except 

 103, which often becomes reddish. 102 — 108 



Gills changing colour, rufescent, or becoming ashy or spotted. 



109—112 



