DERMINI. 259 



t. 113. /. 3 var. B. (5r Br. n. 908. C. Hbk. n. 310. Illust. PL 411. S. Hebeloma. 

 Alycol. Scot. n. 312. Hoffm. Ic. t. 6. f. 2. minor. C. Illust. PI. 412. 



576. A. subcollariatus B. &. Br. — Pileus about 2.5 cent, (i in.) 

 broad, pallid, somewhat fuscous in the centre, somewhat fleshy, 

 convex, slightly glutinous, the floccose veil vanishing. Stem 

 stuffed, at length delicately fistulose, brown at the base and pul- 

 verulent. Gills ventricose, separating, forming a short interrupted 

 collar, clay-coloured, shining white at the edge. 



Allied to ^. mesophceus, of which we were at first inclined to consider it a 

 variety. 



On naked soil. Sibbertoft, 1881. Oct. 



Spores elliptic, uninucleate, 13 mk. B. of Br. Name — S2ib, and coUai-e, a 

 collar. From the gills forming somewhat of a collar. B. ^ Br. n. 1942. 



577. A. senescens Batsch. — Pileus 7.5 cent. (3 in.) and more 

 in diameter, ochraceous-tawny, convex then flattened, slightly 

 glutinous, delicately tomentose and white at the extreme margin. 

 Stem 12.5 cent. (5 in.) long, at first bulbous and fuscous down- 

 wards, then, with exception of the shining white tomentose apex, 

 squamulose, solid. Gills adnexed, crowded, at first pallid then 

 cinnamon. 



Flesh white ; odour acrid. Sometimes semiglobose. Stem always dark 

 below. Exactly resembling the figure of Batsch, which does not seem to have 

 been noticed by Fries. 



Among fir-trees. Gwrwch Castle. Corstorphine. Sept. 

 Name — se?iesco, to grow old. B. 5f Br. ti. 1941 bis. C. Illust. PI. 407. 



II. — Denudati. Pileus smooth, at the first luith ?w co7'tina. 



578. A. sinapizans Fr. — Pileus 7.5-12.5 cent. (3-5 in.) and 

 more broad, sometimes of one colour, clay, sometimes pale-yellow- 

 ish at the disc, fleshy, compact, convex then plane, very obtuse, for 

 the most part 7'epand and often excentric, even, smooth, slightly 

 viscid when fresh; flesh white. Stem 7.5-12.5 cent. {;})-'^ in.) 

 long, 2.5 cent, (i in.) thick, stout, rigid, somewhat solid, equal or 

 fusiform-rooted, fibrilloso-striate, white, white-squamulose at the 

 apex. Gills deeply emarginate, 6-10 mm. (3-5 lin.) broad, crowded, 

 fragile, opaque, clay-cinnamon, always arid and unspotted, never 

 distilling drops or dotted. 



The largest of this group. Corresponding remarkably with A. siiinosjcs, 

 but readily distinguished by its strong odour of radish, and quite destitute of 

 a veil. Solitary. 



Under trees in a field. Uncommon. Sept. 



