burn site Mycena

Myxomphalia maura

characterized by grayish brown cap that often becomes centrally depressed, broad whitish gills, grayish brown stem, and growth on burnt soil; Smith(15) mentions some confusion in the species concept in Europe: the Friesian species Agaricus maurus has a dry cap and long-decurrent gills, but the concept accepted in Europe is that of Ricken (1915) which is the same as the one he describes in Smith(15) as Omphalina maura, but cannot be regarded as the same as one he found in Michigan that corresponds to one illustrated by Lange from Denmark; there are difference between descriptions of spores, some stating that they are smooth and some that there are fine amyloid warts; M. maura common in western United States, (Smith), M. maura material examined from WA, OR, ID, QC, (Bigelow(6)), OR (Kauffman), collections from BC at Pacific Forestry Centre and University of British Columbia, reported from AB by Schalkwijk-Barendsen(1), NS, ME, (Bigelow(4))also in Europe and reported from Asia and North Africa, (Breitenbach(3))
Small gray moss dwelling mushroom Ha - sometimes the ones I think should be easy to ID... odd color, moss habitat, zonate... Fall,Geotagged,United States,burn site Mycena,myxomphalia maura

Appearance

Cap:
1-3.5(5)cm across, convex or centrally depressed with incurved margin, becoming flat or centrally depressed; dark grayish brown or olive-brown to blackish brown, fading to gray or paler as it dries; "viscid when moist but soon dry and often shiny, smooth", (Arora), 1-3.5(5)cm across, convex to convex-depressed with incurved margin, expanding to broadly convex or nearly flat when old, the disc often shallowly depressed; 'very dark grayish brown (near "olive-brown" or "mummy brown") and evenly colored or margin only slightly paler, slowly fading to pale gray or at times nearly white'; bald, "viscid when moist but soon dry and glistening", cap skin separable, margin finely striate at first, (Smith), "grey brown, convex, cuticle glutinous when damp, margin stays incurved, streaked, up to 3cm across", (Schalkwijk-Barendsen), hygrophanous, dark brown to blackish brown; viscid, bald, (Bigelow(6))
Flesh:
thin; white to grayish, (Arora), thin but pliant; dark watery gray, (Smith)
Gills:
adnate to slightly decurrent, close; "white to pale grayish (usually paler than cap)", (Arora), bluntly adnate to slightly decurrent, close, 3 tiers of subgills, gills broad; white or grayish but always much paler than cap or stem; edges even, (Smith), "decurrent and arched because the cap stays curved down, relatively broad", close, relatively broad; whitish to pale gray, (Schalkwijk-Barendsen)
Stem:
2-6cm x 0.2-0.5(0.6)cm, more or less equal; "colored more or less like cap or slightly paler, but not fading as quickly"; smooth, (Arora), 3-6cm x (0.1)0.2-0.4cm, equal, stuffed with floccose white pith, cartilaginous; colored as cap or slightly paler; top pruinose but soon becoming bald and polished overall, (Smith), brittle (Lincoff)
Small gray mushroom in moss - underside Fall,Geotagged,United States,burn site Mycena,myxomphalia maura

Naming

Fayodia maura (Fr.) Singer
Mycena maura Kuehner
Omphalina maura (Fr.) Quel.

Habitat

single, scattered or in groups on burned soil and debris, especially under conifers, (Arora), scattered to gregarious on burned areas, during fall rainy season, but also found in spring, (Smith), May to June, September to October, (Lincoff), spring, summer, fall

References:

Some text fragments are auto parsed from Wikipedia.

http://linnet.geog.ubc.ca/Atlas/Atlas.aspx?sciname=Myxomphalia%20maura
Taxonomy
KingdomFungi
DivisionBasidiomycota
ClassAgaricomycetes
OrderAgaricales
FamilyTricholomataceae
GenusMyxomphalia
SpeciesMyxomphalia maura
Photographed in
United States of America