PRATELLI. 3 1 5 



towards the margin. Stem 5-7.5 cent. (2-3 in.) long, 12 mm. Stropharia. 

 {)4 in.) and more thick at the base, hollow, the sonieivhat bulbous 

 base solid, equally attenuated upwards, whitish ; covered over 

 below the superior ring with crowded, imbricated and squarrose, 

 whitish-fuscous scales, tvhite-mealy above it. Gills adnate, ventri- 

 cose, lanceolate or at length semi-ovate, 4-6 mm. (2-3 lin.) broad, 

 fragile, not very crowded, at first clay-white, then pale timber, 

 fuscous-spotted in appearance. 



The vertex of the pileus at length becomes rimosely warty, the circumference 

 rimosely scaly, and the thin margin rimosely split. The universal floccoso- 

 scaly, fuscous veil, which at first encircles the whole plant, remains persistent 

 on the stem, forming concentric, imbricated, squarroso-recurved zones, but 

 soon separates from the pileus. It is separate from the partial veil or ring 

 which is superior, membranaceous, pendulous, white, with the margin very 

 much swollen fioccose and fuscous. The gills at first sight appear as if free. 

 Spores fuscous -purple. Slightly firm, though at the same time fragile. 



About Scotch fir stumps. Very rare. Glamis. Sept. 



Between the peculiar umber disc and the rest of the pileus which is paler, 

 tan-coloured, there is sometimes a marked circular depression. The disc is 

 very soon naked, and becomes broken into granulose warts, leaving the rest 

 of the pileus clothed with the peculiar blackish scales which look like sharp- 

 pointed tufts. These soon vanish while the stem remains clothed. This very 

 striking species has appeared in the only British station in the years 1874, 

 1875, 1883. Name — Medusa s head. From the scales on the pileus. Fr. 

 Monogr. \. p. 418. Hym. Eur. p. 288. Ico?/. t. 131./. 3. B. ^f Br. ?i. 1536. 

 S. Mycol. Scot. n. 374. 



706. A. scobinaceus Fr. — Pileus at first fuscous, livid then 

 becoming yellow in the centre, grey-violaceous at the circumfer- 

 ence, fleshy, thin, hemispherical then expanded, gibbous, slightly 

 sulcate, covered with crowded, adpressed, separating, blackish 

 sqiianiides. Stem hollow, attenuated from the thickened (solid ?) 

 base, fibrillose, white, mealy at the apex. Ring superior, fuga- 

 cious, white. Gills adnate, crowded, crenulated, white-Jlesh-colour 

 then becoming purple. 



Manifestly allied to A. caput-Medusce, though less handsome; moist and 

 more fragile ; csespitose. 



On or near stumps. Rare. Glamis. Dun. Sept.-Oct. 



The type of this species is nearly of the same stature as A. caput-Medusce, but 

 the whole plant is thinner, more fragile, and less handsome. There are vari- 

 ous intermediate forms which seem to connect the two, combining features of 

 both. 1 have found several well-marked stages between them. Spores ellip- 

 soid-elongate, 7-8x3 mk. C.B.P. Name — scobis, sawdust or filings. As if 

 sprinkled with sawdust. From the scales. Fr. Monogr. i. /. 419. Hym. 

 Eur. p. 288. B. &^ Br. it. 1660. S. .Mycol. Scot. u. 375. 



707. A. Jerdoni B. «& Br. — Pileus 5 cent. (2 in.) broad, ochra- 

 ceous (brown when dry), fleshy, campanulate, obtuse, with a broad 



