CLASSIFICATION 241 



** Not hygrophanous ; gills whitish. 



L. placida. — Cap i-i| in. broad, thin, campanulate, then convex, 

 not striate, the blackish disc downy, the remainder with blackish 

 squamules on a paler ground-colour ; gills very broad behind, 

 crowded, whitish ; stem 2-3 in. long, smooth, even, blackish blue, 

 apex with white meal and blackish points. 



Leptonia lappula also has black points at the apex of the stem, 

 but differs in the umbilicate cap. 



On or near beech trunks. 



L. lappula. — Cap rather fleshy, convex, then plane, not striate, 

 flocculose when young, then with crowded, shori, erect fibrils, 

 grey, often with a brown tinge, about ij in. across ; gills crowded, 

 whitish, then dingy salmon-colour ; stem about 2 in. long, brownish 

 lilac, apex naked and with blackish points ; the stem is sometimes 

 blackish purple. 



Stem distinctly and widely hollow. 



Among beech leaves, etc. 



Leptonia reace. — Cap up to \ in. broad, becoming expanded, even, 

 smooth, deep blue with purple tinge, edge slightly incurved at first ; 

 stem 1-1.I in. long, wavy, blue-black, then often vinous ; gills 

 short, broad, broadly and deeply sinuate, narrowly adnate, then 

 free, whitish, then greyish pink. 



In pastures. 



L. lampropoda {PL XVII, fig. i). — Cap thin, convex, then 

 expanded, obtuse, becoming depressed, almost smooth, then 

 squamulose, mouse-grey or sooty grey with a violet tinge, then 

 paler, about i in. across ; gills adnate, whitish, then rosy ; stem 

 i-i.l in. long, smooth, bluish violet. 



Resembling L. asprella, differing in the stoi;t stem, and absence of 

 striae and of an umbilicus. 



Among grass in pastures, heaths, etc, 



L. (BtJiiops. — Cap thin, plane, then depressed, fibrillosely streaked, 

 smooth, shining, sooty black, i-ij in. across ; gills adnexed or 

 adnate, whitish ; stem i|-2 in. long, slender, smooth, blackish 

 brown, with black points near the top. 



Differs from L. lampropoda by the slender stem with black points 

 at the top, and from L. serridata by the cap not being umbilicate. 



Among grass, etc. 



** Gills bluish. 



L. scrrulata. — Cap thin, convex, umbilicato-depressed, squamu- 

 lose, blackish-blue, smoke colour when old, shining when dry, 

 about I in. across ; gills adnate, greyish white, edge serrulate, 

 at length greyish flesh-colour ; stem about i in. long, smooth, 

 paler than the cap, apex with black points. 



Rigid. Stem black or steel-blue, glaucous. 



Among grass, etc. 



