106 FUNGUS-FLOKA. 



paler towards the striate margin ; sprinkled with minute 

 particles; gills adnexed, sinuate behind, about ^ line broad, 

 white; stem up to f in. long, slender, equal, whitish above, 

 umber below, wholly whitish-pulverulent, solid. 



Agaricus (ISIijcena) psammicola, B. & Br., Ann. Nat. Hist., 

 no. 1518; Cke., Hdbk., p. 79 ; Cke., Illustr., pi. 186a. 



On a sandbank, among moss. 



Yery much resembling M. paupercula, differing in the 

 pulverulent stem and in having particles sprinkled on the 

 pileus. 



Mycena rugosa. Fr. 



Pileus 1-2 in. across, rather fleshy; campanulate then 

 expanded, more or less umbonate, tough, dry, irregularly 

 wrinkled with raised ribs, grey becoming pale ; gills ad- 

 nexed with a minute decurrent tooth, slightly sinuate, 

 rather distant, connected by veins, greyish-white ; stem 

 about 2 in. long, 1^ line thick, straight, often compressed, 

 firm, tough, even, glabrous, pallid, with a thort, oblique, 

 strigose rooting base. 



Agaricus (Mycena) rugosus. Fries, Epicr., p. 106 ; Cke., 

 Hdbk., p. 80; Cke., Hlustr., pi. 186b. 



On or near stumps, trunks, &c. 



Often growing singly, and then large. 



Stem short, rather thick, straight, at length compressed. 

 Pileus somewhat obtuse. Gills ventricose, entire or the 

 similarly coloured margin minutely serrulate. (Fries.) 



Much tougher than M. galericulata^ the latter also differs 

 in being tutted in habit, pileus not irregularly wrinkled 

 but striate up to the umbo, and gills with a slight pink 

 tinge. M. excisa has the pileus rugose, as in the present 

 species, but differs in the brownish stem and in the gills 

 being very much narrowed behind. 



Pileus at first campanulate, then convex, sulcate up to 

 the umbo, cinereous, as well as the short, compressed stem, 

 which is glabrous above ; gills distant, cinereous, uncinato- 

 adnate, connected by veins. (B. & Br.) 



Mycena sv.dora. Fr. 

 White. Pileus |-1t in. across, flesh very thin, except the 

 umbo ; convex, umbonate, striate, viscid, often irregular ; 

 gills obtusely adnate without trace of a decurrent tooth, 



