132 BRITISH FUNGI 



M. acicula. — Cap about 2 lines across ; deep orange-red ; gills 

 yellow ; stem slender, tinged yellow. 



Distinguished by the yellow gills. 



On fallen twigs, wood, etc. 



M. zepJiira .—Ca.p about i in. across, campanulate, striate, livid 

 red or pinkish ; gills white ; stem 2-3 in. long, whitish, squamulose, 

 sometimes with a rosy tinge. 



Differs from M. pur a in absence of smell. 



On the ground among twigs, etc. 



M. flavipes. — Cap about § in. across, campanulate or semi- 

 orbicular, rosy pink, purplish or violet, the disc becoming darker ; 

 gills white, then tinged pink ; stem about 2 in. long, pohshed, 

 yellow, rooting. 



On stumps. Clustered or tufted. 



M. pur a (PI. XI, fig. 4). — Smell strong, resembling radishes. 

 Cap i|-3 in. across, bell-shaped, then expanded, clear pale rose- 

 colour ; gills broad ; stem naked, whitish. 



Distinguished by the strong smell. 



Pileus sometimes tinged lilac or yellow. 



On the ground. 



P. pseiidopura. — Closely allied to M. piira but smaller, and has no 

 smell. Differs from M. zephira in smooth stem. 



On the ground. 



*** Cap yellowish or greenish yellow. 



M. alcalina. — Smell strong, nitrous. Cap up to i in. across, striate, 

 pallid or yellowish green ; stem yellowish, viscid. 



Known by the strong nitrous smell and the greenish yell(n\' cap. 



On stumps, trunks, etc. Tufted. 



M. codoniceps. — Cap campanulate, sulcate, sprinkled with short, 

 erect hairs, wholly umber, about 2 lines high ; gills white ; stem 

 whitish above, umber below, 2-4 lines high. 



On tree-fern trunks. 



M. hiemalis. — Cap campanulate, rather umbonate, striate, 

 flesh-colour, rufescent or whitish, often pruinose, up to |- in. across ; 

 gills narrow, stem I— i in. long, slender, curved. 



Differs from M. corticola in the umbonate cap with striate edge, 

 colour paler ; stem longer. 



On trunks of trees. 



M. lineata. — Cap |-| in. across, striate, with fine lines to the 

 centre, becoming expanded and almost flat ; gills white ; stem 

 2 in. long, downy at base. 



On the ground among moss. 



M. farrea. — Cap very thin, campanulate, then expanded, sub- 

 umbonate, grooved, covered with a white bloom, whitish or yellow- 



