Observation 277625: Laccaria Berk. & Broome

When: 2017-05-25

Collection location: Queeny County Park, Saint Louis, Missouri, USA [Click for map]

Who: Judi T. (AvidAmateur)

No specimen available

Notes:
A tiny, solitary specimen fruiting on debris beside a large decayed log at the bottom of a shallow ravine in riparian woods. Cap: 7 mm., coral-red fading to range-yellow. Stipe: 3 cm. X 1 mm. Distinctive long white hairs at base.

Images

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Copyright © 2017 Judi Thomas
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Copyright © 2017 Judi Thomas
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Copyright © 2017 Judi Thomas
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Copyright © 2017 Judi Thomas
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Copyright © 2017 Judi Thomas
Long white hairs at base of stipe.
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Copyright © 2017 Judi Thomas
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Copyright © 2017 Judi Thomas
In situ

Proposed Names

-11% (2)
Used references: Lincoff’s Audubon Field Guide
65% (5)
Recognized by sight: Thick gills.
45% (2)
Recognized by sight

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

= Observer’s choice
= Current consensus

Comments

Add Comment
I agree that L. ohiensis is a good look-alike for
By: Judi T. (AvidAmateur)
2017-06-01 16:08:42 PDT (-0700)

my specimen; however, I ruled that out originally based on the long white hairs at the base of the stipe (zoom in on Image 7564) … not mycelium, but rather hairs (a la Mycena) as in descriptions of M. acicula. Guess we’ll never know as I no longer have this specimen. Since it was so tiny it shriveled into oblivion within a few hours of reaching home. I’ll be on the lookout for another, for sure. Thanks again, everyone, for your input.

There are a few other species names…
By: Dave W (Dave W)
2017-06-01 10:59:42 PDT (-0700)

that have been applied to the small/tiny Laccarias. I mention them in a previous comment (here). But frankly, I wonder if anyone actually knows how to apply these names.

Fair enough Dave.
By: Debbie Viess (amanitarita)
2017-06-01 10:16:35 PDT (-0700)

I was not familiar w/that sp.

Debbie…
By: Dave W (Dave W)
2017-06-01 10:08:43 PDT (-0700)

read Kuo’s description of the stipe of L. ohiensis, “bald or finely hairy.” http://www.mushroomexpert.com/laccaria_ohiensis.html . The species of Laccaria that feature very small fruit bodies have morphology that differs from the more robust types.

that stipe looks to be way too smooth
By: Debbie Viess (amanitarita)
2017-06-01 09:34:51 PDT (-0700)

to be Laccaria.

Got spore drop? Are those gills pink, or is it spore drop, instead?

Dave, thank you for explaining your thought
By: Judi T. (AvidAmateur)
2017-05-31 17:44:32 PDT (-0700)

process on this one — very helpful. Will check our some of the species you mentioned. Appreciate all the info you provided.

Stipe appears to lack translucency…
By: Dave W (Dave W)
2017-05-31 05:45:48 PDT (-0700)

expected with many Mycena species, including M. acicula. I’m guessing the context in the cap and stipe here is more fibrous/resilient than the brittle/fragile context of M. acicula. Also, the color of the gills, slightly pinkish-purplish, suggests Laccaria. There are a few Laccaria species that feature very small fruit bodies that look like the one seen here; L. ohiensis, L. altaica, L. striatula. IDing any of these small Laccarias to species (assuming these species names are actually all currently applicable) is not easy, but I think the the features mentioned will help one separate them from the small colorful Mycenas. If you really want to be certain about the difference, then the spores of M. acicula at 400x look much different than warty Laccaria spores.

Jacob and Dave, thanks for looking at my ob. I am
By: Judi T. (AvidAmateur)
2017-05-30 08:52:26 PDT (-0700)

not convinced that my original ID is incorrect. I have reviewed the criteria for M. acicula (Lincoff’s Audubon Field Guide) and all the obs. for this species previously posted on MO. In spite of the fact that my specimen was slightly old and a bit soggy due to its location at the bottom of a ravine, the size, colors, habitat, and some distinctive characteristics seem spot on to me … including the thickness and attachment of the gills. There are many excellent obs. posted on MO, some even including photos of the gills: observation 273272 , observation 240440 , observation 200300 , observation 167622 and others.

Can you tell me specifically what features (other than gill thickness which I have addressed) are pointing you away from my original ID? As you know, I’m always interested in increasing my ability to make accurate identifications of my finds.

Thanks again:)

Created: 2017-05-29 17:55:00 PDT (-0700)
Last modified: 2017-06-01 10:17:06 PDT (-0700)
Viewed: 121 times, last viewed: 2019-08-12 22:19:01 PDT (-0700)
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