CLASSIFICATION 347 



the continuous veil, which is broken up into patches as the cap 

 expands. 



On the ground. Rare. 



C. aphthosus. — Cap about i in. higli, and l.road, vpry thin, ovate- 

 campanulate, not striate, at first covered with floccose scales, then 

 naked, pallid ; gills becoming black ; stem about 2 in. high, white, 

 fibrillose, often twisted. 



In hollow trunks. 



var. boltoni. — Cap wavy, tinged olive. 



C. flocculosus. — Cap 2-3 in. across, very thin, ovate, then ex- 

 panded, dingy white, striate, covered with adpressed scales, split- 

 ting ; gills free, tinged violet, then brownish black ; stem up to 

 3 in. high, white, silky. 



In fields and gardens. Solitary or tufted. 



C. similis. — Cap ovate-campanulate, pallid, disc darker, with fine 

 line-striations, apex with brown-tipped, sharp warts which soon 

 disappear ; gills blackish, edge brown ; stem white. 



Differs from C. aphthosus in striate cap. 



On trunks of dead trees. 



**** Cap at first covered by a doimiy u'eh-likc we]t that becomes 

 torn into scales, which soon disappear. 



C. extinctorius. — Cap i|— 2 in. across when expanded, thin, cylin- 

 dric-clavate, then campanulate, striate, at first with evanescent 

 scales, whitish, apex tinged brown ; gills becoming brownish black ; 

 stem 4-5 in. long, smooth, white. 



Cap splitting, but edge not turning up. Scales disappearing in 

 order from apex to edge of cap. 



On the ground about the roots of trees, etc. 



C. fimetarius (PI. XXV, fig. 7). — Cap 1-2 in. across, clavate, then 

 conico-expanded, soon spht and revolute or upturned, greyish, 

 apex brownish, grooved, at first co\'ered with white scales ; gills 

 black ; stem 5-6 in. high, squamulose, white. 



Soon becoming split, upturned, and deliquescing. Scales dis- 

 appear in order from edge of cap to the apex. 



On manure heaps. Often clustered. 



var. pullatiis. — Cap dusky, then blackish. Stem soon smooth. 



var. cinereus. — Cap mealy, then naked, ashy grey. 



var. macrorhiza . — Cap at first with feathery squamules ; stem 

 short, with a long rooting base. 



All grow on manure or rich soil. 



C. tomentosiis. — Cap i-i| in. high, cylindrical, then conical, 

 striate, tomentose or velvety, pale grey, the tomcntum becoming 

 torn into scales, splitting ; gills blackish brown ; stem about 2 in. 

 long, velvety, greyish. 



On dung and on manured ground. 



