Observation 87365: Mycena (Pers.) Roussel
When: 2012-02-03
Who: Byrain
No herbarium specimen

Notes: Very small, stem base to cap apex is 3 mm, cap width is 1 mm. These have cobwebby mycelium and are growing on a fallen oak stick with some lichens.

Edit (02/06/12):

Spore range = 8 – 9 (10) x 7 – 8
Average spore = 8.71 × 7.41
Average Q = 1.18
17 spores measured from the gill

Images

198127
198581
Cap cross section, bad colors
198584
Bad section, gills pinkish in melzers
400x
198585
Spores
1000x
Mounted in melzers
1μ divisions
198586
Spores
1000x
Mounted in melzers
1μ divisions
198587
Spores
1000x
Mounted in melzers
1μ divisions
198588
Spores, sometimes with an hyaline outer layer
1000x
Mounted in melzers
1μ divisions
198589
Gill edge
Cystidia? Basidia? Ornamented with rounded stubs
Mounted in melzers
198590
Gill edge
Cystidia? Basidia? Ornamented with rounded stubs
Mounted in melzers
198591
Gill edge
Cystidia? Basidia? Ornamented with rounded stubs
Mounted in melzers
1μ divisions
198594
Pileipellis, covered with clusters of short stubs (Cytidia?)
pileus hyphae encrusted and clamped
1000x
Mounted in melzers
198597
Cheilocystidia? Basidioles?
1000x
Mounted in melzers
1μ divisions
198598
Basidioles
1000x
Mounted in melzers
1μ divisions
198707
Cap cross section, somewhat better colors

Proposed Names

53% (1)
Eyes3
Recognized by sight
26% (1)
Recognized by sight
27% (1)
Used references: (1) Maas Geesteranus; (2) Aronsen’s “Mycenas of Norway”
Based on microscopic features: Spore size and shape of chilocystidia.

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
Nice find
By: Sava Krstic (sava)
2012-02-17 11:28:46 EET (+0200)

Good work; thanks for sharing.

From Aronsen’s page on M. supina:

“M. supina is a member of sect. Supinae Konrad & Maubl. and occurs in the same types of habitat as M. meliigena (Berk. & Cooke) Sacc. and M. pseudocorticola Kühner. These both species often turn into brownish colours with age. They can, however, readily be separated on account of the cheilocystidia, which are covered with fairly short, unbranched, cylindrical excrescences in M. supina, while the cheilocystidia of the two other species are covered with more or less branched and fairly long excrescences. In addition the spores of M. supina are smaller than in M. pseudocorticola and M. meliigena.”

Like Moss Sporophytes!
By: Insomnia
2012-02-17 07:47:51 EET (+0200)

This is soo cool! They look so much like the sporophytes of a bryophyte. Especially with the thallus of the lichen below. Very artistic in a sense, like a surreal moss.

Genius. Very beautiful. Great work man.

You’re right
By: Byrain
2012-02-17 07:17:34 EET (+0200)

I was reading the mushroom expert description.

pallid edge
By: jimmiev
2012-02-17 06:58:20 EET (+0200)

Mycena meliigena description from Mycena of Norway and A. Smith’s M. corticola description both mention paler edge

M. corticola
By: Byrain
2012-02-17 06:39:47 EET (+0200)

doesn’t have marginate gills as I understand.

I think they were fresh
By: Byrain
2012-02-08 03:52:54 EET (+0200)

And have dried and shrunk a lot since then, but perhaps, it was pretty dry when they were found. Though, something Mycena-like sounds like an interesting idea.

My guess
By: Christian (Christian Schwarz)
2012-02-08 03:39:46 EET (+0200)

is that it is a wilted Mycena – they often have knobbed cystidia and some have lamellar trama that is vinescent in Melzer’s.

Yep
By: Byrain
2012-02-08 02:44:19 EET (+0200)

That’s the plan.

Unusual spores
By: Alan Rockefeller (Alan Rockefeller)
2012-02-07 16:11:22 EET (+0200)

What a cool find. You should probably sequence this one.

Lichen parasite
By: Byrain
2012-02-07 11:11:21 EET (+0200)

I didn’t really notice it before, but it appears to be colonizing the lichen, the mycelium can be seen mostly on the brown (Dead?) parts.

Microscopy
By: Byrain
2012-02-07 07:23:49 EET (+0200)

I added some microscopy, any guesses on genus?

Tiny secotioids
By: Byrain
2012-02-04 05:07:13 EET (+0200)

I didn’t even realize these were mushrooms till I saw the picture.

Created: 2012-02-04 03:29:45 EET (+0200)
Last modified: 2012-02-17 11:23:02 EET (+0200)
Viewed: 194 times, last viewed: 2014-03-06 08:43:55 EET (+0200)
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