Observation 10166: Cortinarius (Pers.) Gray

When: 2008-08-29

Collection location: Sitka, Alaska, USA [Click for map]

Who: Kitty LaBounty (kitty labounty)

No specimen available

The mushroom were growing in clusters along a trail in a second growth forest. The cap of this mushroom varies from convex when young to plane or even uplifted as it ages. The caps were not viscid. There wasn’t a color change in the cap when the mushroom dried. I couldn’t find any trace of a cortina on any of the mushrooms.
The stems had bulbous based.
The spore print was a dull rusty brown. The most distinct microscopic characteristic was the abundant cystidia (rostrate), they originated in the trama.

[admin – Sat Aug 14 02:06:02 +0000 2010]: Changed location name from ‘Sitka, Alaska’ to ‘Sitka, Alaska, USA



Proposed Names

-21% (2)
Recognized by sight
Based on microscopic features
23% (4)
Recognized by sight: But hopefully, Dimi will confirm or deny…
-23% (3)
Recognized by sight: Just a suggestion, as close as I gan get from the picture
59% (2)
Recognized by sight

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
could have been …
By: Debbie Viess (amanitarita)
2015-09-13 12:44:08 CDT (-0500)

but not saved for deeper analysis (or was it, Kitty?).

fact of it growing on the ground (see intact stipe base w/dirt, not woody bits) leans it more towards a Cort.

spore color, presence of cystidia could make it either; disappearing PV not uncommon.

yet another unsolved mystery?

Could this be a Gymnopilus?
By: Christian (Christian Schwarz)
2015-09-13 12:09:27 CDT (-0500)
By: Kitty LaBounty (kitty labounty)
2008-09-01 17:53:29 CDT (-0500)

thanks for the suggestions. I believe that the material is still sectionable and I’ll see what I can do to get a photograph of the cystidia. Any ideas about a reasonable key to this genus?

I’d return rubicindulus as the most likely name
By: Dimitar Bojantchev (dimitar)
2008-09-01 05:40:22 CDT (-0500)

Debbie, I didn’t mean to suggest to you to withdraw the id, as it
likely is rubicundulus (now that I look at it more carefully). I meant
that the spores and other info needed to be examined too. The presence
of cheilocystidia is a very strong argument for something in this
group (incl. rubicundulus). But again, I’d like to see what has been
interpreted as cheilocystidia exactly. The overall stature and
discoloration (chrome yellow, turning to orange) does strongly suggest
rubicundulus, or allies. I’d re-establish your original diagnosis
(with a disclaimer that many of these names are little or more
speculative and reflect more affinities than a firm id).

Dimi has convinced me that it is not red enough for rubicundulus…
By: Debbie Viess (amanitarita)
2008-08-31 10:41:30 CDT (-0500)

…so I retract my ID.

Created: 2008-08-29 11:43:30 CDT (-0500)
Last modified: 2015-09-13 12:44:28 CDT (-0500)
Viewed: 109 times, last viewed: 2017-06-05 01:27:59 CDT (-0500)
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