Observation 65633: Meottomyces dissimulans (Berk. & Broome) Vizzini
When: 2011-04-16
Herbarium specimen reported

Notes: Single specimen found growing in cottonwood leaf litter. Cap 2.8 cm; stem 4 cm long, 3 mm thick; with veil remnants. Spore print dull-brown, spores 8-9 × 5-6 microns. Some bumpy hyphae (cystidia?) on the gills.

A small brown-spored mushroom with veil, decurrent gills, and smooth spores—-what can it be?

Proposed Names

57% (1)
Eye3 Eyes3
Used references: See Else Vellinga’s comment.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Posted a similar one…
By: Douglas Smith (douglas)
2011-04-21 16:23:09 CDT (-0400)

Just posted a similar one, but different, that was seen at a BAMS nature walk in Livermore:


By: Sava Krstic (sava)
2011-04-21 01:52:32 CDT (-0400)

Thanks a lot for your help. I don’t have access to Flora agaricina neerlandica, but have checked the description in Funga Nordica (Jan Vesterholt). Except for decurrent gills (“broadly attached” in the description), everything I could check matches. Will do a more detailed microscopy when I get a chance.

ah, Phaeowhatera
By: Danny Newman (myxomop)
2011-04-20 18:46:45 CDT (-0400)

the international mushroom of mystery. and right in our backyard.

Meottomyces dissimulans
By: else
2011-04-20 18:30:18 CDT (-0400)

this looks most like what we used to call Pholiota oedipus, but has been migrating through all those different brown-spored genera, to end up in a genus of its own, with a new (old) species name.
good description in Flora agaricina neerlandica 4: 102. 1999.

By: Danny Newman (myxomop)
2011-04-20 18:11:08 CDT (-0400)

those gills appear to be ever-so-slightly serrated. looks like there may have been an annulus as well. there’s a distinct raised ring of flesh mid-way up the stem.

Created: 2011-04-17 15:19:26 CDT (-0400)
Last modified: 2011-04-21 01:35:41 CDT (-0400)
Viewed: 165 times, last viewed: 2016-10-21 14:20:42 CDT (-0400)
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