Observation 53378: Gomphidius Fr.

When: 2010-09-20

Collection location: Forest near Elgin St., Pembroke, Ontario, Canada [Click for map]

45.796718° -77.131727°

Who: Paul Derbyshire (Twizzler)

No specimen available

This mushroom is very interesting. Tan cap with indistinct dark patches that are pigment, NOT veil remnants or fluff or anything; dark, greyish strongly-decurrent gills; whitish stipe with a bright yellow region at the base; not brittle (so, not Russulales).

Not Russulales; not Clitocybe or its allies like Clitopilus and Ampulloclitocybe with such dark gills; not Lepista nuda. The gills occasionally fork but seem to be true gills, apparently ruling out Cantharellus tubaeformis. Not viscid, seemingly ruling out Gomphidius glutinosus.

I know a lot of things that this is not. Anyone have any idea what it is? :)

Species Lists



Proposed Names

96% (4)
Eye3 Eyes3
Recognized by sight: Decurrent gray gill and yellow base of stipe pretty distinctive to Gomphidius. I’m less certain which species, but agree this is not likely G. glutinosus. I’d consider something near G. roseus or G. subroseus.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Why not G. glutinosus?
By: Nathan Wilson (nathan)
2013-12-07 05:22:59 PST (-0800)

G. roseus is a European species that is quite red. G. subroseus rarely (if ever) stains black and is usually smaller than this appears. It looks like it was quite dry at the time so it seems like G. glutinosus or G. maculatus are what you’re left with.

All of the Gomphidius
By: Christian (Christian Schwarz)
2010-09-21 09:11:28 PDT (-0700)

can fade when exposed to light and it is very common for them to dry out in similar conditions.

The decurrent gray gills and white stipe with chrome yellow base are enough to safely say Gomphidius.

More evidence for the genus: the spotted cap (very common for the genus down here), dull reddish-rosy cap color is in the range typical for many members of the genus, and if you wanted micro confirmation, you’d find elongate spindle-shaped (ie. boletoid) spores on this.

By: Paul Derbyshire (Twizzler)
2010-09-20 22:15:22 PDT (-0700)

seem wrong for G. roseus and G. subroseus. Shouldn’t the cap be bright pink to red for those? Also, aren’t most or all Gomphidius viscid? G. glutinosus is just particularly extreme in that regard, I thought.

Created: 2010-09-20 20:36:14 PDT (-0700)
Last modified: 2013-12-07 13:15:24 PST (-0800)
Viewed: 65 times, last viewed: 2018-05-04 01:43:07 PDT (-0700)
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