Mycena. 43 



More or less resembling several species. M. leptocephala and 

 M. metata differ in strong smell. M. peltata in orbicular plane 

 pileus. M. rugosa differs in rugose pileus. 



peltata, Fr. P. 1'5 2 cm. orbicular, soon plane, disc fleshy, 

 blackish brown then grey, margin striate ; g. with decurrent tooth, 

 grey ; s. 3 4 cm. even, glabrous, base downy ; sp. . 



Differs from M. pelliculosa in absence of viscid pellicle. 



aetites, Fr. P. T5 2 cm. camp. -con vex, coarsely striate, hygr. 

 broad obtuse umbo prominent, brownish ; g. uncinate, thin, connected 

 by veins ; s. 4 5 cm. glabrous, shining subcompressed ; sp. . 



stannea, Fr. P. 2 3 cm. exp. hygr. grey, even, and tin colour 

 with a silky sheen when dry ; g. with decurrent tooth, connected by 

 veins, greyish white ; s. 5 7 cm. even, shining, often compressed ; 

 sp. . 



Differs from M. vitrea in decurrent tooth to gills. 



vitrea, Fr. P. T5 2'5 cm. livid brown, finely striate all over, 

 no trace of umbo or fleshy disc ; g. adnate, not connected by veins ; 

 s. 6 9 cm. slightly striate, polished, pale, base fibrillose ; sp. . 



Differs from M. aetites and M. stanneus in gills not having a 

 decurrent tooth and not connected by veins. 



tenuis, Bolton. White, tufted. P. ll'5 cm. brittle, camp, 

 obtuse, then exp. striate ; g. adnate ; s. 5 7 cm. thin, pellucid, 

 glabrous; sp. - . 



M. gypsea differs in decurreut tooth of gills, and strigose base of 

 stem. 



V. FILIPEDES. Stem very slender, flaccid, rooting, dry, 

 juiceless. Gills discoloured, edge paler. 



filopes, Bull. P. 1 1 '5 cm. camp, then exp. striate, livid grey ; 

 g. free, white ; s. 6 8 cm. flaccid, glabrous, rooting, base downy ; 

 sp. - . 



iris, B. P. 1 2 cm. exp. obtuse, slightly viscid, striate, blue 

 when young, then brownish with blue fibrils ; g. free, tinged grey ; 

 s. 3 6 cm. bluish below, tinged brown above, with scattered fascicles 

 of down ; sp. - . 



aniicta, Fr. P. up to I cm. conico-camp. greyish, striate to 

 middle, dry, glabrous; g. free, grey; s. 6 10 cm. filiform, tough, 

 downy-pulverulent ; sp. - . 



plumbea, Fr. P. 1 2 cm. convex then flattened, obtuse, sulcate, 

 lead colour powdered with white meal ; g. adnate, horizontal, grey ; 

 s. 6 8 cm. elongated, pulverulent, grey, apex hyaline, base strigose, 

 fragile ; sp. - . 



[ianthina, Fr. P. conical, striate all over, glabrous, lilac ; g. broad- 

 est in front, greyish-white ; s. attenuated, flaccid, glabrous, slightly 

 striate, brownish lilac. 



Differs from P. pura in persistently conical pileus. 



urania, Fr. P. camp, then convex, dark violet when young, then 



