CLASSIFICATION 299 



C. pluvius. — Cap |-i in. across, tawny yellow, ochraceous when 

 dry ; gills becoming ochraceous ; stem up to 3 in. long, naked, white. 



In pine woods, etc. 



** Gills at first violet, blue or reddish. 



C. delibutus. — Cap 2-3 in. across, yellowish ; gills adnate, bluish 

 violet, then cinnamon ; stem 2-4 in. long, yellowish white when dry. 



Among grass in woods, etc. 



C. salor. — -Cap about 2 in. across, grey, edge bright violet ; gills 

 adnate, distant ; stem 1^-2 in. long, conically attenuated from the 

 bulbous base, white. 



In woods, etc. 



C. illihatus. — Cap 1-2 in. across, subumbonate, yellow, disc 

 darker ; gills adnato-decurrent, flesh-colour, then tan ; stem about 

 3 in. long, white. 



No trace of violet colour anywhere. 



In pine woods. 



Inoloma 



* Gills white or pallid at first (not tinged violet). 



C. argentatus. — Cap 3-4 in. across, becoming broadly gibbous, 

 silvery grey and shining ; gills crowded, edge serrulate ; stem .3-4 in. 

 long, solid, silvery white. 



In woods. 



C. opimus. — Cap 3-4 in. across, everywhere covered with short 

 ochraceous down ; gills narrow, rather crowded ; stem about i in. 

 long, stout, solid, base rooting, whitish. 



Distinguished by the very short, thick stem, and the very 

 thick, hard flesh of the cap. 



On the ground in woods. 



C. tiirgidus. — Cap 2-3 in. across, hoary and sprinkled \\ith 

 shining particles, smooth and silvery shining when adult ; gills 

 crowded, edge entire ; stem 2-3 in. long, stout, bulbous, smooth, 

 silvery white. 



AlUed to C. argentatus, differing in unbroken edge of gills. 



** Gills, stem and veil becoming more or less coloured violet. 



C. violaceus (PI. XXIII, fig. 4). — Cap very fleshy, 3-6 in. across, 

 dark violet, covered with persistent down ; gills blackish violet, 

 becoming rusty ; stem 3-4 in. long, bulbous, dark violet, veil 

 woolly, bluish, then rusty. 



Easily recognized by being dark violet, both outside and inside, 

 the downy-squamulose cap and distant gills. 



In woods. 



C. cyanites. — Cap 3-4 in. across, violet with a reddish tinge, edge 

 whitish fibrillose ; gills rather crowded, purple, broad ; stem about 

 3 in. long, purplish violet, bulbous. 



In larch woods, etc. 



