134 AGARICUS. 



Mycena. at first dark brown with a tinge of purple, disc almost black, 

 membranaceous, campanulate, obtusely umbonate, sulcato-striate 

 to the middle. Stem 7.5 cent. (3 in.) long, 2 mm. (i lin.) thick, 

 fistulose, thickened downwards, of the same colour, whitish floe- 

 cose at the base, sometimes rooting. Gills adnexed, rather broad, 

 scarcely crowded, white. 



Spores elliptic, smooth. Odour slightly nitrous. The pileus grows a little 

 paler with age, sometimes with a glaucous bloom. Allied to A. atro-cyaneus 

 and A. leptocephalus. 



On the ground among dead leaves. Chingford, 1882, &c. 

 Oct.-Nov. 



Name pullus, dark. From the blackened colour. B. & C. Grcvillea, vol. 

 xi. p. 69. C. lllust. PL 237. 



279. A. pauperculus Berk. Pileus 2 mm. (i lin.) broad, pale 

 ochraceous -white, fleshy, somewhat membranaceous, obtusely 

 conical or hemispherical, minutely innato-fibrillose. Stem 1-2.5 

 cent. (j-i in.) long, i m. (y z lin.) thick, white, curved, rooting, 

 minutely stuffed, smooth except at the villous base, powdered at 

 the top with the sporules, generally thicker below. Gills at first 

 free then adnexed, white. 



Odour farinaceous. The pileus is in age almost tawny, probably stained by 

 the wood on which it grows. Gills adnexed from the growth of the pileus 

 which is sometimes striate from translucence. 



Inside of decayed stumps. Uncommon. Sept. 



Name diminutive of pauper, poor. From its insignificant appearance. 

 Berk. Eng. Fl. v. p. 57. Out. p. 125. C. Hbk. n. 187. lllust. PL 236. Fr. 

 Hym. Eur. p. 141. 



280. A. leptocephalus Pers. Pileus cinereous, somewhat 

 membranaceous, campanulato-expanded, repand, umbonate, sul- 

 cate, pruinose, opaque. Stem equal, slightly striate, opaque, dry. 

 Gills emarginate, white-cinereous. 



Fragile, strong-smelling, odour nitrous. Solitary. It agrees with A. alka- 

 linus in its nitrous odour, but differs in its growth never being casspitose, in 

 its slightly striate stem, its pruinose sulcate pileus, and its emarginate gills. 



On trunks and the ground. Laxton Park, Northamptonshire. 



Spores ellipsoid, 6-8 mk. Q. Name XCTTTO?, fine ; /ce^aA^, head. From its 

 delicate pileus. Pers. Ic. t. 14. f. 4. Fr. Hym. Eur. p. 141. Monogr. \. p. 

 214. B. & Br. n. 1747. C. lllust. PL 187. 



281. A. alkalinus Fr. Pileus 2.5-5 cent - O- 2 in -) broad, cin- 

 ereous, fuscous, date-brown, inclining to olivaceous, somewhat 

 membranaceous, campanulate, obtusely umbonate, deeply striate 



