PKATKLLI. 307 



In meadows, &c. Cosmopolitan. May-Oct. Psaliota. 



Although very common it is very capricious in its growth. Edible. Well 

 known as the common mushroom. Spores sphseroid-ellipsoid, 9 x 6 mk. A'.; 

 6x8 mk. W.G.S. Name campus, a plain, field. Linn. Suec. n. 1205. Fr. 

 Monogr. i. p. 406. Hym. Eur. p. 279. Sverig. at 1. Sv. t. 5. Berk. Out. p. 

 165. C. Hbk. n. 390. S. Mycol. Scot. n. 364. Sow. t. 305. Grev. t. 161. 

 Hussev \. t. 90. Schceff. t. 33. Krombh. t. 23. /. 1-8. Vittad. t. 6-8. Bar/a 

 t. 27. Tratt. t. K. C,onn.*& Rab. 2. /. i. &c. 



* A. silvicola Vitt. Pileus becoming even, shining, white. 

 Stem stuffed, elongated, somewhat bulbous, ring sijnplej flesh 

 somewhat unchangeable. Gills acute behind, whitish then slowly 

 becoming fuscous. 



Like A. arvensis, but distinguished by the ring, &c. 



In woods. Not uncommon. Name silva, a wood ; colo, to inhabit. Vitt. 

 Fr. Hym. Eur. p. 280. Monogr. i. p. 406. Berk. Out. p. 166. C. Hbk. n. 

 390. S. Mycol. Scot. n. 364. Krombh. t. 23. /. 8. Gonn. & Rab. ii. t. 2. 

 Paul. t. 183. 



689. A. silvaticus Schasff. Pileus 7.5 cent. (3 in.) broad, 

 somewhat ferruginous, scales rufescent or becoming fuscous, 

 thinly fleshy, oval then campanulate and flattened, somewhat um- 

 bonate, the -whole surface floccose, torn into squamules, the disc 

 however often remaining continuous, and at length denuded of 

 scales, margin often rimosely incised ; flesh thin, fragile, white, 

 commonly rufescent. Stem 7.5 cent. (3 in.) and more long, 12 

 mm. (% in.) thick, slender, at first stuffed with a cylindrical sep- 

 arate white pith, then hollow, equal, dingy white, fibrillose below 

 the ring, even above it, smooth. Ring distant, simple, floccose 

 beneath, sometimes wide but thin and membranaceous, some- 

 times narrow, incomplete, fugacious. Gills free, ventricose, 

 equally attenuated at both ends, thin, arid, reddish then cinnamon- 

 fuscous or umber-fuscous. 



The flesh is much thinner than that of its allies. The stem is much longer 

 and more slender than that of A. campestris, &c. 



In woods. Frequent. July-Sept. 



Smell strong, M.J.B. Spores 4x6 mk. W.G.S. Name silva, a wood. 

 Schatff. t. 242. Fr. Monogr. \. p. 406. Hym. Eur. p. 280. Berk. Out. p. 

 167. C. Hbk. n. 391. Si Mycol. Scot. n. 365. Krombh. t. 24. /. 9, 10 (in- 

 clining to A. campestris). 



690. A. hsemorrhoidarius Kalchbr. Pileus rufous-fuscous, 

 fleshy, ovate then expanded, covered with broad adpressed scales, 

 margin at first bent inwards; flesh when broken immediately 

 blood-red. Stem soon hollow, fibrillose, the solid base some- 

 what bulbous. Ring superior, large. Gills free, approximate, 

 crowded, rosy-flesh-colour, at length purple-umber. 



