Observation 22133: Gymnopus (Pers.) Roussel

When: 2009-06-12

Collection location: Wynn Jones County Park, Kitsap Co., Washington, USA [Click for map]

Who: Peter Santerre

No specimen available

No clue on species. Even a pointer on the right genus would be appreciated.

No spore print, did it overnight on black/white split paper and found nothing after 15 hours.


  • Shape: Campanulate to Hemispherical
  • Color: Tan
  • Size: 1 inch diameter
  • Other: margin incurved
  • Other: dry (but it’s been dry out for weeks so unknown in wet weather)


  • Attachment: Adnexed
  • Spacing: Sub-distant
  • Color: Yellow
  • Other: Presence of Lamellulae


  • Spore Print Color:Gills are yellow, but it was a very dry specimen.


  • Color: Tan/Yellow on outside, Yellow on the inside.
  • Annulus: None
  • Volva: The base seems to be covered in kind of a membrane, but I’m not sure I’d call that a “volva”. The texture reminds me of the veil on an Aminita muscaria.
  • Shape: Mosty equal, slight enlargement at base
  • Length: 2 inches
  • Diameter: 1/4 inch
  • Other: No staining/bruising observed when pinched
  • Other: Striated
  • Other: Sinuous

Distribution and Habitat

  • Habitat: Found growing under a medium age cedar tree. Growing directly on cedar and fir duff (seen sticking to base in pictures)
  • Distribution: Solitary

Species Lists


Copyright © 2009 ShockValue
Copyright © 2009 ShockValue
Copyright © 2009 ShockValue
Copyright © 2009 ShockValue
Copyright © 2009 ShockValue

Proposed Names

-81% (1)
Recognized by sight
-20% (2)
Recognized by sight
23% (5)
Recognized by sight: The yellow, fuzzy stem with the reddish to tan cap are a dead give away!
53% (1)
Recognized by sight: I don’t think one can get further without additional details
56% (1)
Recognized by sight

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Not inconceivable, but inconclusive…
By: Dimitar Bojantchev (dimitar)
2009-06-15 13:15:39 CDT (-0400)

Can’t say from the photos, but it is not inconceivable, considering
that the only place where it has been found in North America is in the
Pacific Northwest. Never seen it in California. I have collected it in
Europe and Canada (British Columbia). Still, without a note on the
distinctive taste I consider the id very inconclusive.


I didn’t get a chance -
By: Peter Santerre
2009-06-15 01:08:30 CDT (-0400)

to taste this. I left it in the middle of the floor for the spore print (bad idea) and mommy threw it away before little one had a chance to stick it in her mouth instead. (She likes mushooooms!)

Looking around the web for descriptions and pictures, I would say that G.peronatus is a pretty good match.

Perhaps Gymnopilus
By: Christian (Christian Schwarz)
2009-06-14 15:09:38 CDT (-0400)
I had doubts too
By: Irene Andersson (irenea)
2009-06-14 13:57:17 CDT (-0400)

because I haven’t seen this extreme yellow colour in them, but the descriptions I have of peronatus say that they are sometimes yellow, especially young ones. The hairy stem isn’t well developed yet, either.

So, what does it taste like..?

are you sure?
By: Andreas Gminder (mollisia)
2009-06-14 13:23:24 CDT (-0400)

I wouldn’t have recognized Gymnopus peronatus in this specimen, to be honest. I know the species very well from Europe, but it has never so bright and pure yellow gills and flesh. Also the gills should be more distant. I doubt that this fungus is identical with the european Gymnopus peronatus.

Gymnopus peronatus
By: Joshua Birkebak (Shua)
2009-06-14 09:16:22 CDT (-0400)

… is a recent introductee into Washington but now is quite common! Very distinctive coloration!

Thanks for the suggestion.
By: Peter Santerre
2009-06-14 02:30:28 CDT (-0400)
I’ll see if I can’t get something to fit with that -

Created: 2009-06-13 22:07:08 CDT (-0400)
Last modified: 2011-12-13 12:26:42 CST (-0500)
Viewed: 290 times, last viewed: 2018-11-15 05:35:51 CST (-0500)
Show Log