LEUCOSPORI. 159 



342. A. infumatus B. & Br. Pileus 4 mm. (2 lin.) broad, green 

 then of a smoked colour, obtuse, not membranaceous. Stem 2.5 

 cent, (i in.) long, thin, not 2 mm. (i lin.) thick, yellow, dilated at 

 the base, tomentose, especially below. Gills decurrent, few (about 

 12), with smaller intermediate, broad, distant, yellow. 



Allied to A. umbelliferus, but quite distinct from all its varieties. 



On bark among moss. Garthewin. 



Name infumo, to smoke. From its smoked colour. B. & Br. n. 1851. 



343. A. retostus Fr. Wholly um&er.'PileMS 12 mm. (X in.) 

 and more broad, slightly fleshy^ piano-depressed, when moist even 

 and when dry polished and smooth, margin convex, involute, 

 entire; flesh of the same colour. Stem curt, scarcely 2.5 cent, 

 (i in.) long, 2 mm. (i lin.) and more thick, fistulose, tough, equal, 

 smooth, paler than the pileus. Gills slightly decurrent, equally 

 attenuated at both ends, broader in the middle, hence resembling 

 a segment of a circle, distant, distinct, pallid umber. 



In colour it approaches A. oniscus, but in the very distant gills it is more 

 allied to A. umbelliferus, from which it is easily distinguished by the gills 

 being in the form of a segment. Moreover, it clearly differs from the umber 

 form of that species in being even when moist and polished and smooth when 

 dry. It is also firmer. 



On lawn. Coed Coch, 1878. Oct. 



Name retostus, roasted. From its scorched appearance. Fr. Monogr. i. 

 p. 187. Hym. Eur. p. 161. Icon. t. 76. /. 2. the two lower fig. B. & Br. 

 n. 1750. C. Illust. PL 272. b. 



344. A. abhorrens B. &. Br. Pileus fuscous, umbilicate, even. 

 Stem slender, of the same colour as the pileus, white-tomentose 

 at the base. Gills decurrent, distant, thick, interstices even. 



Odour very foetid, stercoraceous. Caespitose. Allied closely to A. retostus, 

 but clearly distinct, apart from its disgusting smell. Stem sometimes pruinose 

 when young. 



On lawn. Coed Coch, &c. Oct. 



Nameatkorreo, to abhor. Of its disgusting smell. B. &> Br. n. 1751, 

 1853. C. Illust. PL 272. c. 



345. A. pseudo-androsaceus Bull. Whitish or grey. Pileus 



fleshy-membranaceous, convex, deeply umbilicate, at length in- 

 fundibuliform, smooth, striato-plicate, margin crenulate. Stem 

 stuffed, slender. Gills deeply decurrent, in the form of a segment, 

 distant, distinct. 



Distinguished from A. griseo-pallidus by its slender stature. 



