l88 AGARICUS. 



Pluteus. Protean. In very shady places the colour passes into yellow-fuscous (Fl. 



Dan. t. 1067. /. 2). In hollow trunks smaller with the pileus excentric and 

 the stem ascending. 



On trunks and stumps. Common. April-Nov. 



Spores sphceroid-ellipsoid, even, 7-8x5-6 mk. K.; 6-8x4-5 mk. B. ; 4x5 

 mk. W. G.S. Name cervus, a deer. Fawn-coloured. Schceff. t. 10. Fr. 

 Monogr. i. p. 263. Hym. Eur. p. 185. Berk. Out. p. 141. C. Hbk. n. 

 240. Illust. PL 301. S. Mycol. Scot. n. 233. A. atricapillus Batsch t. 76. 

 A. latus Bolt. t. 2. Sow. t. 108. A. pluteus Dittm. Sturm, t. 28. Krombh. 

 t. 2. /. 7-10. A. Neesii Klotzsch in FL Bar. t. 459. Var. Bullii Berk. C. 

 Illust. PL 357. 



* A. eximius Sm. Pileus fleshy, when young campanulate 

 and elegantly corrugated and lobed, margin involute and not 

 membranaceous, clothed with a semi -viscid separable cuticle. 

 Stem thick, solid, fibrillose. Gills crowded, somewhat thick, 

 white then pale rose, becoming slightly rufous when bruised ; 

 flesh cartilaginous, tasteless or watery. 



Flesh cutting like A. cervinus. Manifestly near A. petasatus, but it differs 

 materially in the pileus being fleshy throughout, and in other characters. 

 Spores yellowish salmon, spherical but somewhat irregular, averaging7X5 mk. 



On sawdust. Rare. Nov. 



The pileus is rufescent-umber, when young darker and beautifully tinged 

 with carmine roimd the margin. The very stout stem becomes almost black- 

 streaked. Name eximius, remarkable. Saund. fir 1 Sm. t. 38. S. Mycol. 

 Scot. n. 233. C. Illust. PL 302. Fr. Hym. Eur. p. 186. 



* A. petasatus Fr. Pileus 12.5-15 cent. (5-6 in.) broad, 

 whitish-cinereous, at length somewhat date-brown, campanulate 

 then expanded and flattened, very smooth, covered over with a 

 viscid separable pellicle, fleshy at the disc but membranaceous and 

 at length slightly but densely striate from the circumference to 

 the middle; flesh soft, white. Stem as much as 20 cent. (8 in.) 

 long, solid, rigid, attenuated upwards from the silky base, fibril- 

 loso-striate, pallid, at length becoming tawny. Gills very broad, 

 18 mm. (^ in.), very crowded, drying up and at length tawny at 

 the edge. 



On sawdust, &c. Uncommon. 



Name petasus, a hat with a broad brim. From its shape. Fr. Monogr. \. 

 p. 265. Hym. Eur. p. 186. Berk. Out. p. 141. C. Hbk. ?t. 243. Illust. 

 PL 303. S. Mycol. Scot. ?i. 233. Berk. Ann. Nat. Hist. xiii. t. 9. f. 2. n. 

 271. 



410. A. umblOSUS Pers. Pileus timber, fleshy, campanulate 

 then expanded, lacunose-wrinkled, at the first villous, margin 

 ciliato-fimbriate. Stem solid, villous-scaly. Gills free, fuliginous- 

 fimbriated at the edge. 



