PRATELLI. 



305 



up into large persistent brown, not fusco-citrinous scales, areolate Psaliota. 



in the centre ; margin very obtuse, thick, covered with pyramidal 



warts; flesh 18 mm. (% in.) thick in 



the centre, turning red when cut. 



Stem 10 cent. (4 in.) long, 5 cent. (2 



in.) thick in the centre, solid, stuffed 



with delicate threads, at first nearly 



equal, at length swollen in the centre 



and attenuated at the base, fibrillose 



and areolate below, nearly smooth 



within the pileus. Ring thick, very 



large, deflexed, broken here and there, 



areolato-verrucose beneath. Gills free, 



6 mm. (3 lin.) broad, of a brownish 



flesh-colour. 



A'A'A'. Agaricus (Psaliota) cam- 

 pestris. One-third natural size. 



Caespitose. Taste and smell excellent. 



Under oak-trees. Bodelwyddan, 

 1863. Sept. 



Name from the district bordering on the Elwy. B. & Br. n. 1009. C. 

 Hbk. 11. 392. Fr. Hym. Eur. p. 278. 



686. A. arvensis Sc has ff. Pileus 7.5-10 cent. (3-4 in.) and more 

 broad, whitish, fleshy, globoso-campanulate then flattened, obtuse, 

 flocctiloso-mealy when young, then slightly silky even or squamu- 

 lose, dry ; flesh thick, compact, at length softer, white, unchange- 

 able. Stem 7.5 cent. (3 in,) and more long, 2.5 cent, (i in.) and 

 more thick, hollow, with a lax floccose pith, but stout, thickened 

 at the base, obsoletely marginato- bulbous when young, even, 

 smooth, white. Ring superior, large, pendulous, formed as it 

 were of two growing together, the interior one membranaceous, 

 uniform, the exterior one thicker and shorter, somewhat free at the 

 circumference, radiately split. Gills free, approximate, ventricose, 

 broader in front, always arid, white, at length reddish-fuscous. 



The gills remain long pallid, are never dark red as in A. pratensis, and 

 never deliquescent. 



In meadows and borders of fields, &c. Common. Spring, 

 Autumn. 



Known as the " Horse-Mushroom." When young and fresh it is delicious, 

 but becomes tough when old. The flesh is firm and abundantly juicy. Ac- 

 cording to Berkeley it often turns yellow when bruised. Spores sphaeroid- 

 ellipsoid, 9x6 mk. K. ; 11x6 mk. W.G.S. Name a mum, a cultivated 

 field. Schfrff. t. 310, '.<ii. Fr. Monogr. i. p. 405. Hym. Eur. p. 278. 

 .SVrr/;'-. dtL Sv. t. 4. Berk. Out. p. 166. t. 10. / 4. C. Hbk. n. 389. S. 

 Mycol. Scot. n. 363. Hussey i. t. 76, 77. Paul. t. 134. /. i, 2. A. Georgii 



VOL. I. Tj 



