CLASSIFICATION 349 



Differs from C. atraiiioihiriiis in smaller size, and free, distant 

 gills. 



In small tufts on trunks, stumps, heaps of dead leaves, etc. 



C. tardus. — Cap 1-2 in. high and wide, campanulate, grooved, 

 smooth, brown, then paler ; gills very narrow, blackish ; stem 

 4-6 in. high, whitish, slightly wavy. 



Densely tufted. Differs from C. deliqiiescens in the smooth disc. 



C. digitalis. — Tufted. Cap about i in. high and broad, thimble- 

 shaped, striate, smooth, straw-colour ; stem 1-5 in. long, wavy, 

 white. 



In damp places in woods. Tufted. 



C. congregatus (PL XXV, fig. 6). — Densely tufted. Cap |-| in. 

 high, cyhndrical, then bell-shaped, then expanded and splitting, 

 slightly striate, smooth, viscid, ochraceous ; gills becoming black ; 

 stem i-i| in. long, smooth, whitish. 



Distinguished by densely tufted habit and viscid, smooth, 

 ochraceous cap. 



On the ground, in hot-houses, etc. 



2. Cap very thin, smootli, without a cuticle, grooved, splitting along 

 the lines of the gills. 



* Stem icith a ring which is sometimes formed from the free edge 

 of the volva. 



C. hendersoni. — Cap about 2 lines high, up to J in. across when 

 expanded, subcylindrical, then almost plane, pruinose, apex pale 

 brown, remainder greyish ; gills free, black, edge \\hite ; stem 

 i-i| in. long, white, with a distinct ring. 



On hotbeds and dung. Very tender. 



C. bresadolce. — Cap subcylindrical, greyish white, apex tinged 

 brown, |-| in. high ; • gills black, edge white ; stem up to 4 in. 

 long, tapering upwards, furnished with a loose, deciduous ring, 

 white, smooth. 



Always expands at night, deliquescing almost as it expands. 

 At first covered with a very thin, universal veil, which does not 

 break uj) into squamules, but splits from apex to base, and dis 

 appears. 



On wood. Gregarious. 



C. lagopus. — Cap 1-2 in. across, cylindrical, then campanulate, 

 covered with white down, becoming smooth, grooved, greyish, 

 splitting, and turned up ; gills free, black ; stem 3-6 in. long, white, 

 everywhere covered with white down. 



Resembling C. niveus in appearance, but larger, and with a 

 flocculent or downy stem. 



On dung, rotten wood, etc. 



C. narcoticus. — Cap |-| in. across, cylindric-clavate, then 

 expanded and revolute, at first covered with recurved white scales. 



