Original Herbarium Label: Gymnopus fuscopurpureus (Pers.) Antonín, Halling & Noordel.
Growing on a mossy base of Arbutus menziesii
Our collections do not have did not show any reaction with KOH that should be typical for Gymnopus fuscopurpureus. See: Halling, R. E. (1990). Collybia fuscopurpurea in the Americas. Mycological Research 94(5): 671-674.
In this respect, our collections of “Gymnopus fuscopurpureus” are similar to Gymnopus fuscopurpureus treatment in Breitenbush, Fungi of Switzerland vol. 3: 176, under Collybia fuscopurpurea. They wrote: “We have not observed any incrustation on the hyphae of pileipellis in our collections of C. fuscopurpurea nor any change in KOH …”

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KOH reaction
By: Christian (Christian Schwarz)
2014-11-13 04:51:58 IST (+0530)

My understanding that your observations of the species depicted here
does not turn green in KOH?

That is core to the European concept of G. fuscopurpurea – the subsection is named for it: Alkalivirentes per Antonín & Noordel.

Adding my name to the authors is childish, Adolf. I understand we disagree, but I don’t think every single voting disagreement should be solidified in the author field of a name. Please remove it – it’s inappropriate.

Our collections are (except one) in the UBC Herbarium
By: Oluna & Adolf Ceska (
2014-06-07 10:00:27 IST (+0530)

This particular collection is already in the UBC herbarium, but still it has not been accessioned. They can track down the specimens and send them to you on loan. Several other specimens might have been accessioned by now. The collecting dates are:
2008-01-02 MO # 164776 – This observation
2008-11-05 MO # 166514 – Waiting for shipping in the UBC
2009-11-24 – Shipped to the UBC recently
2010-09-28 – Possibly accessioned already, brought to UBC at the end of March
2011-11-10 – Possibly accessioned
2013-11-06 MO # 152320 – Possibly accessioned already
UBC contact information:
We would greatly appreciate your help.
Adolf & Oluna

Did you apply KOH?
By: Christian (Christian Schwarz)
2014-05-07 22:38:26 IST (+0530)

This doesn’t look much like my concept of G. fuscopurpureus, due to the paler beige-yellow to orangey-brown stipes and warmer colored cap. G. fuscopurpureus is darker purplish brown with a very dark stipe.
This sort of resembles a Gymnopus I frequently find near madrone (but also oak and douglas-fir) that does NOT turn green in KOH (unlike G. fuscopurpureus s.s.).

See discussion here: observation 117346

Created: 2014-05-07 04:46:32 IST (+0530)
Last modified: 2014-11-14 01:51:43 IST (+0530)
Viewed: 112 times, last viewed: 2019-07-13 08:41:58 IST (+0530)
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