One of the observations on display at the 2014 All California Club Foray.
Collector unknown.
Joe Cohen

Species Lists


Copyright © 2014 Joseph D. Cohen

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no specimen…
By: Debbie Viess (amanitarita)
2014-02-02 16:43:39 MST (-0700)

and no blame being cast on any sort of person, regardless of country of origin.

I just reported what I saw online…lots of photos of Chrysomphalina w/yellow gills labeled aurantiaca.

On to the next great obsie.

Debbie, have you preserved this specimen?
By: Oluna & Adolf Ceska (
2014-02-02 14:12:56 MST (-0700)

Oluna claims that you did. “Oregon Mycological Society (OMS)” took the posted photo before Oluna transferred the specimen to another plate since she did not have the room for her ID on the original plate.
Debbie, don’t blame Europeans for “Chrysomphalina labeled aurantiacum all over the internet”; according to Redhead, Chrysomphalina aurantiaca is a Western Cordilleran Endemic (p. 3019 in Redhead, S. A. (1989). A biogeographical overview of the Canadian mushroom flora. Canadian Journal of Botany 67(10): 3003-3062) and it’s ID and taxonomical position is an issue for the Western Cordilleran Mycologists. Don’t blame “Europeans and transplanted European mycologists (Dimitar)” for problems created by indigenous mycologists.
I have an impression that I have already mentioned on MO that Ian Gibson collected all the original descriptions in his (at al.) MatchMaker and those descriptions are mirrored in the UBC Klinkenbergs’ E-Flora
There is no DNA sequence for Chrysomphalina aurantiaca in GenBank (accessed 5 minutes ago), hence your may be the first, unless it matches Chrysomphlina chrysophylla as Noah suggested.
If there is no specimen, we should not lose the time in this discussion.

You could
By: Rocky Houghtby
2014-02-02 13:58:42 MST (-0700)

All agree to call it “Chrysomphalina” and no one would be even remotely wrong.

Two wrongs
By: Noah Siegel (Noah)
2014-02-02 12:22:28 MST (-0700)

(or in the case of the internet, many more that two) don’t make a right…

Like Oluna I refuses to continue in this discussion. What is another wrong mushroom ID on the internet worth anyway…

difficult group and remote IDs
By: Debbie Viess (amanitarita)
2014-02-02 11:56:22 MST (-0700)

hey, I got it wrong in hand! That’s my handwriting on that plate.

But these were a bit confusing…with hardly decurrent gills. they do have a shaggy margin to the cap, and they are also smaller than you might think…that was a small paper plate. see maggot on wood for better size comparison.

I see golden-yellow gilled examples of Chrysomphalina labeled aurantiacum all over the internet, from both Europeans and transplanted Europeans (Dimitar).

The PNW key council only has single photo sets, no descriptions, for all of the Omphaloid species. Not sure which characters are slam dunk for these species differences. confusion seems to be the norm.

Is there a detailed initial publication somewhere that we can refer to?

DNA might help, but then, you better hope that the Genbank comparisons are to actual examples of the species that you are looking for, and not its lookalike.

I will defer here to both Oluna’s expertise and the fact that she actually handled these, but it is not easy to put names on them, certainly not just from a photo.

Oluna refuses to continue in this discussion
By: Oluna & Adolf Ceska (
2014-02-02 04:27:55 MST (-0700)

since she had this particular specimen in her hands at this particular foray and she is familiar with both Chrysomphalina species in question. Unfortunately, the specimen was not saved and any discussion about its identity is a waste of time. AC

I disagree…
By: Noah Siegel (Noah)
2014-02-01 22:41:11 MST (-0700)

Chrysomphalina aurantiaca starts off bright orange and fades, pale orange, yellowish-orange to pale whitish-orange on older dry specimens. It is also small, usually 1-2.5 cm across,rarely over 3 cm. The gills are orange when young, fading in age, but are not this golden in color.

Chrysomphalina chrysophylla has dark scales on the cap when young, (vs. fine hairs on C. aurantiaca) but they can disappear in age. Older caps also go from brownish-gold or grayish-gold to bright gold colored. The gills retain the bright golden-yellow color (like these). It’s also a slightly larger species, with caps in the 1-4 cm range.

An older collection of Chrysomphalina chrysophylla

One starting to lose the dark scales;

Thanks for the correction
By: Joseph D. Cohen (Joe Cohen)
2014-02-01 13:00:41 MST (-0700)


Thanks for correcting this, and my apologies for causing the confusion in the first place.

— Joe

I had this specimen in my hands
By: Oluna & Adolf Ceska (
2014-02-01 12:55:43 MST (-0700)

and I changed the name from Tricholomposis decora to Chrysomphalina aurantiaca still at the display. The sporocarps were light golden-yellow throughout. I transferred that collection to a new plate with a correct name, but Oregon Mycological Society (OMS) took a photo before I corrected the original ID (“Tricholomopsis decora”).
Check and
to see the difference between the two species of Chrysomphalina in question.