284 AGARICUS. 



Naucoria. as in that species. It varies very small, very thin, with the pileus 4 mm. (2 

 lin.) broad, pellucid-striate, and with distant gills. 



On old wood in a cellar. Kilburn, 1882. 



Name — OpC^, hair ; ttou;, a foot. From the hair-like stem. Fr. Monogr. i. 

 /• 375- Hy7n. Eur. p. 259. Grevillea, vol. xiii. p. 59. C. lllust. PL 458. b. 



637. A. pediades Fr. — Pileus 2.5-5 cent. (1-2 in.) broad, j^//^w 

 or pale yellowish-ochraceous then becoming pale, slightly fleshy, 

 convex then plane, obtuse, even, dry, smooth, at length rimoso- 

 rivulose, but always without striae; flesh white. Stem 5-7.5 cent. 

 (2-3 in.) long, 2-4 mm. (1-2 lin.) thick, stuffed luith a pith, some- 

 what flexuous, tough, equal, but with a small bulb at the base, 

 slightly silky becoming even, yellowish. Gills adnexed, 4 mm. (2 

 lin.) broad, at first crowded, at length somewhat distant, somewhat 



fuscous then dingy cin7iamon. 



Spores fuscous-ferruginous. The small bulb at the base is formed by the 

 mycelium being rolled together. Stature variable. 



In pastures, roadsides, &c. Frequent. July-Nov. 



Name — TreSioi/, a plain. Fr. Monogr. i. p. 376. Hym. Eur. p. 260. Berk. 

 Out. p. 160. C. Hbk. 71. 365, lllust. PI. 492. -S. Mycol. Scot. ft. 337. A. 

 arvalis Letell. t. 675. — B. A. pusillus Schceff. t. 203. 



638. A. semi-orbicularis Bull. — Pileus 2.5-5 cent. (1-2 in.) 

 broad, taivny-fei'riiginous then ochraceous, slightly fleshy, con- 

 vexo-expanded, obtuse, dry, even, smooth, corrugated when dry. 

 Stem 7.5-10 cent. (3-4 in.) long, scarcely beyond 2 mm. (i lin.) 

 thick, cartilaginous, tough, slender, tense and straight, equal, 

 even, smooth, becoming y^2\\\A ferrugitwus, sJiining, often darker 

 at the base, i7tternally containing a separate fistulose tube which is 

 easily broken up into fibrils. Gills adnate, rarely sinuate behind, 

 almost 6 mm. (3 lin.) broad, and many times broader than the 

 flesh of the pileus, crowded, pallid then ferruginous. 



In pastures, roadsides, &c. Common. June-Oct. 



The pileus is slightly viscid when fresh and moist. Easily distinguished 

 from A. semiglobatus, with which it has been confounded, by the stem. Spores 

 14x8 mk. W.G.S. Name — se7m,ha\f; orbicularis, round. Bull. ^. 422./". 

 I. Fr. Mofiogr. i. p. 376. Hym. Eur. p. 260. Berk. Out. p. 160. /. 9./. 4. 

 C. Hbk. 71. 366. lllust. PI. 493. a. S. Mycol. Scot. 71. 338. 



639. A. tabacinus Dec. — Pileus 6-18 mm. (3-9 lin.) broad, 

 umber then bay-brozv7i-cinnamon, very moist, dingy tan when dry, 

 slightly fleshy, plane and very obtuse at the disc, involute at the 

 margin, even, smooth. Stem 2.5-5 cent. (1-2 in.) long, 2 mm. (i 

 lin.) thick and when shorter more, holloiu, attenuated downwards 



