346 AGARICUS. 



Psathyrella. On woodcn pavement. Sibbertoft, 1870. Oct. 



Name — e/ATrupo?, scorched. Burnt-scented. B. cf Br. 71. 1262. Fr. Hym. 

 Eur. p. 315. 



780. A. atomatus Fr. — Pileus 1-2.5 cent. (K-i in.) broad, 

 livid, when dry becoming pale tan or pale flesh colour, some- 

 times reddish, hygrophanous, membranaceous, campanulate, ob- 

 tuse, slightly striate, when dry without striae, slightly wrinkled, 

 sprinkled with shining atoms. Stem 5 cent. (2 in.) long, almost 

 2 mm. (i lin.) thick, fistulose, equal, not rooted, lax, slightly bent 

 (not tense and straight), white and white-pnlverulent at the apex. 

 Gills adnate, broad, ventricose, slightly distant, distinct, whitish, 

 but cinereous-l)lackish with the black spores. 



Solitary or gregarious. Pileus changing like A. gracilis from livid to whit- 

 ish and rose-colour, but more fragile. 



In woods, hedges, &c. Common. July-Sept. 



Spores 14x9 mk. W.G.S. Name — atomatus, atomate. Sprinkled with 

 shining atoms. Fr. Mo7iogr. \.p. 450. //>';;?. Eur. p. 315. Berk. Out. p. 176. 

 C. Hbk. 71. 451. S. Mycol. Scot. n. 420. Sau/id. &" S771. t. 37./. 3-6. 



781. A. crenatus Lasch. — Pileus 18 mm.-2.5 cent, (^-i in.) 

 broad, ochrey or rufescent then pale, hygrophanous, membran- 

 aceous, hemispherical, sulcate, atomate, crettatc at the margin. 

 Stem 4 cent, {lyi in.) long, somewhat curved, fragile, smooth, 

 whitish, striate and mealy above. Gills adnate, somewhat ventri- 

 cose, light yellowish-fuscous then blackish. 



Fragile. 



On the ground. Penzance. 



Name — crenatus, scalloped. Crenate at the margin. Lasch 71. 465. Fr. 

 Hym. Eur. p. 315. B. cf Br. 71. 2013. 



782. A. disseminatus Pers. — Pileus whitish, or yellowish 

 then changing into cinereous, commonly livid, the disc becom- 

 ing yellow, membranaceous, oval then campanulate, at first 

 scurfy, then smooth, silicate. Stem 2.5 cent, (i in.) or a little 

 more long, fragile, fistulose, often curved, lax, somewhat flexuous, 

 slightly scurfy then smooth, white. Gills adnate ascending, broad, 

 but scarcely ventricose, white-cinereous then blackish. 



The stem often encircled at the base with the white mycelium expanded in 

 a stellate manner. Densely crowded or cccspitose. Varying much in stature. 

 The habit is that of Copriuus, very thin and soon wasting, but not becoming 

 fluid. 



About stumps and on the ground. Common. May-Nov. 



Pileus about 6 mm. (3 lin.) broad. Often growing in multitudes. Spores 



