LEUCOSPORI. 67 



at the base, somewhat incurved, fibrilloso-striate, of the same THchoioma 

 colour as the pileus. Gills at first rounded, then sinuato-decur- 

 rent, somewhat crowded, at lengtli distant, violaceous then becom- 

 ing P a ^ e or fuliginous. 



Gregarious, somewhat caespitose, tough. Inodorous. Pileus when old 

 undulated, often excentric. When old the whole plant is dirty, becoming 

 fuscous, and pale when dry. For a long time overlooked for a form of A. 

 nudus, but very different, much smaller, thinner, &c. 



On dung, &c. Great Elm, Somerset, 1866, c. July-Sept. 



Spores ellipsoid, 7-9 x 4 mk. K.; pale ferruginous, 8 mk. D. & Br. Name 

 sordidus, dirty. Squalid in appearance. Fr. Monogr. i. /. 96. Hym. Eur. 

 p. 77. Icon. t. 45. /.i. B. & Br. n. 1196. S. Mycol. Scot. n. 80. Fl. 

 Dan. t. 1843. /. 2. C. Illust. PL 100. Buxb. C. iv. t. 12. /. i. 



129. A. psedidus Fr. Pileus 12 mm. (>< in.) broad, mouse- 

 fuliginous opaque, scarcely becoming pale, somewhat fleshy, 



flaccid, campanulate then convex and flattened, umbonate, at 

 length depressed round tJic conico-prominent umbo, moist, streaked 

 'with innate fibrils radiating from the centre, becoming even how- 

 ever, margin naked ; flesh very thin, very tough, becoming white. 

 Stem 2.5 cent, (i in.) long, 4 mm. (2 lin.) thick, stuffed, externally 

 somewhat cartilaginous, internally fibrous, slightly bulbous at the 

 base, tough, somewhat striate, naked, dingy-grey. Gills somewhat 

 sinuate, with a small decurrent tooth, crowded, narrow, whitish 

 then grey. 



Inodorous. Allied to A. sordidus in its small stature, tough substance, and 

 dingy colours, which, however, never incline to violaceous. 



In grassy places in woods. Abergavenny, c. Aug. 



Name pcedidus, nasty. Fr. Monogr. i. /. 96. Hym. Eur. p. 77. Icon, 

 t. 46. /. i. B. &> Br. n. 1405. S. Mycol. Scot. n. 81. C. Illust. PL 120 

 upper fig. 



130. A. lixivius Fr. Pileus 5-7.5 cent. (2-3 in.) broad, cinere- 

 ous-fuscous when moist, umber, slightly fleshy, convex then plane, 

 umbonate (umbo vanishing), never depressed, even, smooth, with 

 a flattened, membranaceous, at length slightly striate margin; 

 sometimes sinuous. Stem 5 cent. (2 in.) long, 6-8 mm. (3-4 lin.) 

 thick, and in becoming compressed so much broader, stuffed then 

 hollow, often flexuous, fragile, cinereous, at first white-floccoso- 

 pruinose. Gills rounded-adnexed, at first sight free, distant, soft, 

 6 mm. (3 lin.) broad, sometimes crisped, attenuated from the stem 



towards the margin, grey. 



, 



Gills truncato-free. The habit is that of A. orbiformis, but the pileus is 

 darker, umber, not streaked. Stem wholly fibrous, very soft. 



