13 AGARICUS. 



Mycena. becoming pale, very tough, slightly fleshy at the disc, otherwise 

 membranaceous, campanulate then expanded, at length rather 

 plane, somewhat obtuse, more or less corrugated (unequal with 

 elevated wrinkles], always dry, not moist even in rainy weather, 

 striate at the circumference. Stem commonly short, remarkably 

 cartilaginous, fistulose, rigid, tough, straight, at length compressed, 

 even, smooth, pallid, with a short oblique strigose root. Gills 

 arcuato-adnate, with a decurrent tooth, united behind in a collar, 

 somewhat distant, connected by veins, broad, ventricose, white 

 then grey, edge sometimes quite entire, sometimes serrulated. 



Always inodorous. Formerly connected with A. galericulatns. A. rugosus 

 is arid, very tough, more rarely caespitose, the pileus firm, somewhat obtuse, 

 wrinkled but without striae, the gills arcuato-adnate and uncinate, white then 

 cinereous. The genuine A. galericulatus is fasciculato-caespitose, somewhat 

 fragile, the pileus thinner, at first conical and umbonate, striate, without 

 wrinkles, the gills adnate, with a decurrent tooth, white then flesh-colour. 

 Between these there is a long series of intermediate forms. 



On and near trunks and stumps. Common. July-Nov. 



Name ruga, a wrinkle. From the wrinkled pileus. Fr. Monogr. \. p. 208. 

 Hym. Eur. p. 138. B. & Br. n. 990. C. Hbk. n. 180. lllust. PL 186. b. 

 S. Mycol. Scot. n. 152. Bull. t. 518. / K. M. 



270. A. sudorus Fr. Wholly white. Pileus 2.5 cent, (i in.) 

 broad, diaphanous, somewhat membranaceous, convex, umbonate, 

 often irregular, striate, not wrinkled, viscous. Stem very long, 

 firm, rooted, even, dry, rather smooth. Gills adnate obtusely and 

 without a small tooth, broad, at first distinct, rather thick, some- 

 what distant, white then somewhat flesh-colour. 



Commonly solitary. The root is long, blunt, smooth (always ?). 

 On old stumps. Haywood Forest, 1882. Oct. 



Name sudor, sweat. From its viscous pileus. Fr. Hym. Eur. p. 138. 

 C. lllust. PL 206. 



271. A. galericulatus Scop. Pileus somewhat membrana- 

 ceous, conico-campanulate then expanded, striate to the umbo, 

 dry, smooth, (becoming fuscous-livid or changeable in colour). 

 Stem rigid, polished, even, smooth, fusiform-rooted at the base. 

 Gills adnate, decurrent with a tooth, connected by veins, whitish 

 and flesh-coloured. 



Very protean. Normally caespitoso-fasciculate, the numerous stems (never 

 viscous) glued together with villous down at the base. But it occurs also soli- 

 tary, larger, pileus as much as 5 cent. (2 in.) broad, wrinkled-striate. The 

 essential marks by which it is distinguished from A. rugosus are these : stem 

 in general thinner, less tense and straight, often curved, more fragile ; pileus 

 membranaceous, conico-campanulate, umbonate, striate but not corrugated, 



