Observation 53371: “Deuteromycota” R.T. Moore
When: 2010-09-20
Herbarium specimen reported
0 Sequences

I found dozens of these in a mixed hardwood area—-they seemed to like areas that had lots of leaves laying around. They appeared nearly identical to a red potato and when I cut one in half it was a solid with throughout— stipe included. They have false gills and, from the underside looking at the gills, it appears a bit like a parasitic mushroom (as if the gills have been covered by another organism like a lobster mushroom)though I don’t believe they are. The smell is unremarkable. I have done no spore print yet.

I don’t know if this is significant or not. This morning I looked at the two specimens I had sitting for a spore print and noted that the “false gills” now were real gills and there was a white substance,likely mold, growing —-though it looks like mycelium as well. I have added a photo showing much more clearly defined gills.

Proposed Names

6% (2)
Recognized by sight: Gills light colored, widely spaced, staining red
28% (1)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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compare to observation 33019
By: walt sturgeon (Mycowalt)
2011-03-05 11:14:11 PST (-0800)

Maybe an infected Hygrophorus russula?

Please dry 2 specimens
By: Daniel B. Wheeler (Tuberale)
2010-09-22 15:29:51 PDT (-0700)

after slicing them into 1/4-inch thick slabs for faster drying.

The most recent photo does show parasitization, probably from Hypomyces. But your other photos do not appear to show any fungal mycelium. I’d say the first photo is Hypomyces and the rest were not Hypomyces.

difficult or impossible to identify further
By: Mike Kempenich (Gentleman Forager)
2010-09-22 07:47:44 PDT (-0700)

I did not see any latex present when I cut it. I have been unable to get any further in identification from several sources, you are correct. I will take your advice and send a specimen to Matt Trappe. Im a member of the Minnesota Mycological Society and will see if one of the Micologists can lend a hand as well. I can get additional specimens if needed—-would you suggest I send more than one?

Im extremely interested as this is the only mushroom I have reached a dead end on over hundreds I have ID’s or helped to ID over the past couple of years.

Thanks again for your help

Photo 106319
By: Daniel B. Wheeler (Tuberale)
2010-09-21 23:53:29 PDT (-0700)

Appears to show exposed locules (chambers) within the gleba (just under the cap), possibly a result of the fungus attempting to move from a hypogeous (underground) to epigeous (above ground) form.

Setchelliogaster possible
By: Daniel B. Wheeler (Tuberale)
2010-09-21 23:50:44 PDT (-0700)

but in my opinion, not too likely. Setchelliogaster tenuipes in particular has a much more brilliant peridium (cap), and should much more coarsely loculate gleba (interior of cap).

Mike: did you notice any latex present when the collection was sliced? If so, do you remember what color the latex might have been? In dry conditions, latex may dry almost on exposure to air; in other conditions, it may appear as a sticky or gluey surface to the cut surface. Also, can you obtain a specimen (or more) for drying for expert examination? I would suggest sending a dried collection to Matt Trappe, c/o Forestry Sciences Lab, 3200 Jefferson Way, Corvallis, OR.

I know I have read about a usually hypogeous relative of Gomphidius, but cannot remember the name at this time.

Some fungi do not produce many spores that can be released into the air. They instead sequester them inside convoluted and complex labyrinthine chambers; and are therefore sometimes referred to as sequestrate fungi. Only when the hymenium (spore-producing layer) is cut thinly and examined microscopically can spores be seen. Without microphotographs of spores, this curious collection will be difficult or impossible to identify further.

Thanks for your input
By: Mike Kempenich (Gentleman Forager)
2010-09-21 09:30:07 PDT (-0700)

I don’t believe it to be Hygrophorus as ALL of the dozens of specimens from late stage through the largest had this same false gill like cap and are unable to produce a spore print.

Kinda look like…
By: Douglas Smith (douglas)
2010-09-21 09:07:31 PDT (-0700)

They kinda look like Hygrophorus to me. Like a Hygrophorus purpurascens that was effect by the environment, and didn’t fully expand.

At least to me, from these photos…

There are Gomphidius
By: Daniel B. Wheeler (Tuberale)
2010-09-21 08:36:46 PDT (-0700)

which are either becoming epigeous from being hypogeous, or the other way around. Maybe search for Gomphidius and hypogeous? Your collection looks somewhat similar to Macowanites, which is similar to Russula. Macowanites often have little or no stipe visible. Your collection, like Macowanites, appears to be in transition from mostly epigeous (Gomphidius) toward hypogeous (underground). I’m guessing that the gleba (context of the cap) is a mass of tightly appressed and convoluted gills squashed together, and no spore print will be possible. But this may require microscopy to find any spores, as the spores may not longer be forcibly discharged.

Gomphidius and astrogastrous
By: Mike Kempenich (Gentleman Forager)
2010-09-21 06:33:13 PDT (-0700)

I looked at Gomphidius and didnt feel I was on the right track. I could find no info on astrogastrous. Perhaps the spelling is off?

Try searching online for Gomphidius and astrogastrous.
By: Daniel B. Wheeler (Tuberale)
2010-09-20 22:11:28 PDT (-0700)

I’ve forgotten the name, have never found it. But believe this may be a Gomphidius-related fungi which is in the process of either losing its gills entirely, or may be producing them entirely within the gleba of tightly packed gills. If true, there will be almost not visible spores from a spore-print.

Might run it through the key in Smith, Smith and Weber’s “How to Know the Non-Gilled Fungi.”

Created: 2010-09-20 16:45:00 PDT (-0700)
Last modified: 2012-09-07 23:14:10 PDT (-0700)
Viewed: 187 times, last viewed: 2017-06-07 22:19:15 PDT (-0700)
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