Observation 15918: Pluteus americanus (P. Banerjee & Sundb.) Justo, E.F. Malysheva & Minnis

When: 2008-12-05

Collection location: Huddart Park, Woodside, California, USA [Click for map]

Who: Alan Rockefeller (Alan Rockefeller)

No specimen available

Free gill attachment.

I found this mushroom while digging for another, much larger mushroom. It seemed like it just dropped out of the sky but it was probably growing on a twig on the ground.



Proposed Names

-74% (2)
Recognized by sight
-43% (2)
Recognized by sight
-9% (2)
Recognized by sight: NO striations on cap; cap gray/blue rather than reddish brown; white stipe turning blue; free (how did I miss that the first time around??!) pink gills.
29% (1)
Eye3 Eyes3
Used references: Molecular phylogeny and phylogeography of Holarctic species of Pluteus section Pluteus (Agaricales: Pluteaceae), with description of twelve new species

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Irene Andersson (irenea)
2009-01-05 09:20:26 EST (-0500)

Now you removed the ones I thought was Pluteus cyanopus, so I’ll have to remove that suggestion as well.
Eh.. I didn’t manage to do that.

Two species
By: Alan Rockefeller (Alan Rockefeller)
2009-01-05 01:00:02 EST (-0500)

Dan and Debbie are correct – The first pic is the mysterious pluteus, the rest of them were a Nolanea I was photographing in the parking lot. I removed the incorrect images. I only got one decent shot of the pluteus, but I did recently find the sample so I can do some microscopy.

Two different kinds
By: Dan Molter (shroomydan)
2009-01-03 12:31:34 EST (-0500)

I agree, there appears to be two different kinds of Pluteus here. The mushroom in the first photo looks to be psilocybin active; the other does not. Did both specimens have the characteristic smell?

two different species of mushroom?
By: Debbie Viess (amanitarita)
2009-01-02 22:31:38 EST (-0500)

I don’t believe that the top mushroom, with gray/blue cap, pink gills and thick blue stipe is the same as the slender, striate, brown-capped thin white stipe shrooms pictured below.

maybe we’re both right, and you just need two sightings?

By: DannyGlick
2009-01-02 13:07:05 EST (-0500)

Visible lined margin.

Year of the unknown Pluteus.
By: Douglas Smith (douglas)
2009-01-02 12:27:25 EST (-0500)

I’ve been calling this the year of the unknown Pluteus, I’ve got 3-4 I’ve got to scope out, and try and get a name on them. I need to get a good source for Pluteus, does any one have a favorite?

lovely little pluteus!
By: Debbie Viess (amanitarita)
2009-01-02 11:11:21 EST (-0500)

we have been collecting all sorts of interesting pluteus species this year in northern CA. keep up the good work, gang!

Created: 2009-01-01 05:11:55 EST (-0500)
Last modified: 2017-10-11 15:48:35 EDT (-0400)
Viewed: 371 times, last viewed: 2018-07-04 09:42:01 EDT (-0400)
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