Observation 97635: Mycena (Pers.) Roussel
When: 2012-06-17
38.53° 78.15°
No herbarium specimen
0 Sequences

Note: This was fruiting on same Virginia pine log as observation 96911 and looked the same. Very tiny. I collected it. No others could be found on the log, and fruiting 96911 was no longer there.


Photo taken early morning, natural light, not retouched.
Photo cropped and fill light added.

Proposed Names

33% (2)
Recognized by sight
28% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Too young
By: Martin Livezey (MLivezey)
2012-06-28 14:28:15 CDT (-0400)

or at least that what it looks like to me!

here is the best I could do last night with microscopy:

By: Sava Krstic (sava)
2012-06-17 21:18:44 CDT (-0400)


The most important thing for a Mycena would be to see what cheilocystidia look like. To see them, use a tiny bit of a gill edge and mount it in Congo Red (or, better, put it in a drop of CR, then wick most of CR off, then add a drop of KOH). The 40x objective would suffice.

Then come caulocystidia, for which you’d pinch a tiny thread off the stipe surface, near the top, and use CR as above.

Then we’d like to see what the cap surface looks like…

That would be a lot of microscopy, but even partial information (cheilo- only) may suffice.

Spore size helps, as usual, and is the easiest to get.

You might like the article at www.britmycolsoc.org.uk/download_file/view/101/.


What would you look for in microscopy?
By: Martin Livezey (MLivezey)
2012-06-17 19:50:43 CDT (-0400)

Penny has collected it and may send it to me or she could send it to you if you prefer.

By: Danny Newman (myxomop)
2012-06-17 19:38:21 CDT (-0400)

is included in Trudell & Ammirati’s Mushrooms of the Pacific Northwest (pg. 129). Some bleach odor should be present (crush cap if faint). Growth on conifer logs is a check, as is the time of fruiting, though the “whitish bloom” they mention ought be present in young specimens appears to be absent, both here and over at observation 96911. Microscopy would tell us more.

Just with photo alone
By: Gerhard Koller (Gerhard)
2012-06-17 19:24:03 CDT (-0400)

I see no chance.
Any further notes, first of all smell?
It grows on conifer logs and is very dark. Something around stipata? What are the equivalents of stipata in North America?
Without striking odor and no microscopy added I do not think we will get a proper ID if there is not one who actually DOES know the species very well in all its aspects.

I agree.
By: Martin Livezey (MLivezey)
2012-06-17 19:05:38 CDT (-0400)

It looks like a Mycena. I still think it looks a lot darker than any I have seen – quite a bit so. Any idea how we can get this to species level?

Created: 2012-06-17 17:25:25 CDT (-0400)
Last modified: 2013-01-06 15:56:26 CST (-0500)
Viewed: 128 times, last viewed: 2017-06-13 04:27:16 CDT (-0400)
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