236 AGARICUS. 



PhoHota. Striate. Stem about 5 cent. (2 in.) long, 2-4 mm. (1-2 lin.) thick, 

 fistidose, equal, Jibrillose or slightly striate, not scaly, of the same 

 colour as the pileus, but becoming fuscous and commonly white 

 velvety at the base. Ring 2-4 mm. (1-2 lin.) distant from the 

 apex, often in the form of a cortina and fugacious. Gills adnate, 

 crowded, thin, narrow, at first pallid, then darker cinnamon. 



Very much allied to A. 7nutabilis, but constantly dififerent, commonly 

 smaller, solitary or gregarious, more rarely CEespitose ; pileus paler, stem less 

 rigid, substance and colour more watery. It varies much, and is deceptive on 

 account of the vanishing veil. In hedges there is a very small casspitose form 

 with the pileus only 12 mm. (5^ in.) broad, and the stem tough and smooth, 

 with exception of the remains of the fugacious cortina. There also occur on 

 the ground among mosses smaller and paler forms, which must be carefully 

 distinguished from A. unicolor, &c. 



In woods, chiefly pine. Frequent. Sept.-Dec. 



Name — marginatus, margined. Probably from the striate margin. Batsch 



f. 207. Fr. Monogr. i. /. 319. Hyni. Eur. p. 225. Be7'k. Out. p. 151. 



C. Hbk. n. 304. Illust. PL 372. S. Mycol. Scot. ?i. 281, Krombh. t. 73./". 



5, 6. — B. A. mutabilis Batsch f. 208, smaller, darker (certainly not A. 



mycenoides). 



521. A. mustelinus Fr. — Pileus yellow, ochraceous, slightly 

 fleshy, campanulate, convex, even, smooth, dry. Stem fistulose, 

 even, pallid, white-mealy above the superior reflexed ring, thick- 

 ened a7id white-villous at the base. Gills adnate, somewhat dis- 

 tant, /rtw;zy-cinnamon. 



Solitary. There is a larger form ; stem 5-7.5 cent. (2-3 in.) long, 4 mm. 

 (2 lin.) thick, striate, pileus 12 mm. {%, in.) broad. 



On stumps. Guildford, 1882. Sept. 



Name — mustella, a weasel. Weasel-coloured. Fr. Hym. Eur. p. 225. C. 

 Illust. PI. 356. Mich. t. 80./ 6. 



522. A. unicolor Fl. Dan. — Pileus 6-10 mm. (3-5 lin.) broad, 

 bay-brown then ochraceous, hygrophanous, fleshy, campaimlate 

 then convex, somewhat umbonate, smooth, rather even. Stem 4 

 cent. {lYz in.) long, 2 mm. (i lin.) thick, stuffed then fistulose, 

 equal, even, somewhat smooth, of the same colour as the pileus. 

 Ring membranaceous, entire, slight, persistent. Gills slightly 

 adnexed, ventricose, broad, pallid-ochrey. 



Pileus at length striate at the margin. Always very small, slender, some- 

 what gregarious. There is another form, differing in the shorter stem and 

 triangular gills, which are broadly adnate behind, even decurrent with a tooth, 

 although separating. 



On trunks, branches, larch, &c. Hereford. 



