LEUCOSPORI. 51 



93. A. tumidus Pers. — Pileus 7.5 cent (3 in.) broad, cinereous- THchoioma. 

 livid, vcvicgated with tiger-spots, fleshy, irregularly shaped, bid- 

 late, then undulated when expanded, and at length rivwsely in- 

 cised, moist in rainy weather, somewhat shijiing when dry ; margin 



thin, at first bent inwards, somewhat lobed ; flesh white. Stem 

 7.5 cent, (3 in.) long, 18 mm. {}^ in.) thick, solid, fleshy-fibrous, 

 stout, sometimes swollen, smooth, striate, shining white^ often at- 

 tenuated into a root at the base. Gills emarginate, 12 mm. (X 

 in.) broad, thicker at the base, somewhat distant, sJiining wJiite, at 

 length cinereous-rufescent. 



Somewhat cartilaginous, at length rigid-fragile. Odour and taste weak, not 

 unpleasant. Its dimensions vary very much ; sometimes among the taller 

 mosses the stem is elongated, slender, and the pileus much smaller. Allied to 

 CUtocybce difformes. 



In moist pine woods. Coed Coch, &c. Oct. 



Spores 4x6 mk. W.P. Name — tumidus, swollen. Pers. Syn. p. 350. 

 Fr. Mo7iogr. i, p. 74. Hym. Eur. p. 62. 5. Mycol. Scot. Supp. Scot. Nat. vi. 

 p. 213. Krombh. t. y-z. /. i-^. C. Illust. PI. 93. 



Var. Keithii Phill. & Plow. — This differs from the type in its 

 cinereo-rufescent pileus, less turgid, dirty-white stem, which has 

 brownish innate fibres, and in being tinged with red, especially 

 near the base. 



In some of its characters it agrees with A. sudus Fr. , from which it differs 

 in its undulating pileus, distant gills and often rooting stem. The whole plant 

 is fragile, the gills have a cinereous tinge, usually at length becoming rufescent. 

 It frequently has a powerful odour of new meal, and is intermediate between 

 A. sudus and A. tumidus, but is pearer the latter. Grevillea, vol. x. p. 65. 



94. A. murinaceus Bull. — Wholly becoming cinereous. Pileus 

 fleshy, thin, campanulate then expanded, silky, rimosely scaly and 

 streaked. Stem stuffed, stout, variegated with ininute squa7miles. 

 Gills broad, distant, undulated, cinereous. 



Strong- smelling, large, robust, but fragile. Formerly referred to Hygrophorus 

 jiitrosus, from which it is very different, although both species agree in the 

 alkaline odour. 



In open woods and pastures. Rare. Aug.-Sept. 



Pileus II cent. (4K in.) across, at first campanulate, slightly umbonate, 

 then expanded, thin, firm, but very brittle, mouse-coloured, cracked and vir- 

 gate, silky, not the least viscid; flesh white. Stem^7.5 cent. (3 in.) high, 2.5 

 cent, (i in.) thick at the top, cracked and streaked, silky, with minute black 

 scales, solid but fibrous, not the least stuffed or hollow. Gills very broad, un- 

 dulate, distant, having a tendency to become forked and anastomosing, brittle, 

 often marked with raised lines, cinereous, powdery, interstices slightly veined, 

 edge at length black. Taste bitter, unpleasant; odour not nitrous. M.J.B. 

 The plant which I have gathered during several seasons corresponds exactly 



