Observation 19237: Cortinarius (Pers.) Gray

When: 2009-03-06

Collection location: Salt Point State Park, Sonoma Co., California, USA [Click for map]

Who: Debbie Viess (amanitarita)

Specimen available

under tan oak and madrone, mixed woodland.

Species Lists


context pale brown/tan
spores 7-8.5 × 5-6, ellipsoid, roughened (maybe pitted). 100x oil immersion.
spores 7-8.5 × 5-6, ellipsoid, roughened (maybe pitted). 100x oil immersion.

Proposed Names

86% (1)
Eye3 Eyes3
Recognized by sight: dry, broadly umbonate cap, non-bulbous stipe.
Based on chemical features: cap and stipe context negative in KOH.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Ah, you’re a brave man to venture a guess on a cort name!
By: Debbie Viess (amanitarita)
2009-03-20 07:03:16 PDT (-0700)

But I don’t believe that this critter is alboviolaceus; no silvery sheen, no lavendar context. If Dimi can’t come up with a name, with dessicata in hand, it’s probably hopeless for us mere mortals. But it is only because of Dimi’s fine and dedicated work that I even bother to collect and work up these things…he is the only person that I know of in California who has stepped into the vast cortinarius ID breach, with eyes open and a brave heart. I applaud his past, current and future work, from which we all stand to benefit. Go, Dimitar!

Cortinarius alboviolaceus?
By: Tim (Twboss)
2009-03-19 23:03:05 PDT (-0700)

Just figure I’d take a shot…I can’t tell if thats sheathing, or if the base is bulbous. Otherwise spores, habitat, cap, gills.

thank you Dimi; you’re our man in the trackless Cort Jungle…
By: Debbie Viess (amanitarita)
2009-03-19 19:07:02 PDT (-0700)
Good job, nice spore shot Debbie!
By: Dimitar Bojantchev (dimitar)
2009-03-19 18:23:24 PDT (-0700)

The first spore shot with the clearly ornamented spores + the
measurements is very important. Good job. Next thing – get
stronger eyepieces 16X and/or also crop your photo to keep only
the part with maximum resolution. But I see huge progress overall
- that’s light years ahead of what we had (or didn’t have)
before. I will inspect the material for a couple of extra things
and look into a name.

What’s all that mean??
By: Johannes Harnisch (Johann Harnisch)
2009-03-19 18:13:39 PDT (-0700)
dessicata passed off to Dimitar at BAMS meeting on Tuesday night…
By: Debbie Viess (amanitarita)
2009-03-19 12:33:12 PDT (-0700)

perhaps we’ll even (finally) get a name for this handsome critter!

I too will agree
By: Gerhard Koller (Gerhard)
2009-03-09 15:14:50 PDT (-0700)

that this is a Sericeocybe but an unknown to me…

Looks like a Sericeocybe in the albo-/griseoviolaceus group.
By: Dimitar Bojantchev (dimitar)
2009-03-09 14:39:23 PDT (-0700)

Noah, I agree that it looks like a Sericeocybe in the
albo-/griseoviolaceus group. Still, we’re at a stage in
California when we need to examine each Cortinarius collection
critically. Debbie, good job on the KOH, context, taste,
etc. Please post the spores — size, shape, ornamentation, as

what came to mind at first
By: Noah Siegel (Noah)
2009-03-08 19:05:15 PDT (-0700)

was C. griseoviolaceus (see Dimitar’s page)
but that should have pale violet-gray flesh.

more details:
By: Debbie Viess (amanitarita)
2009-03-08 17:35:29 PDT (-0700)

context pale brown/tannish; no discernable odor; mild taste.

By: Noah Siegel (Noah)
2009-03-08 17:04:11 PDT (-0700)

what is the flesh color and any odor?

Created: 2009-03-08 15:00:50 PDT (-0700)
Last modified: 2012-06-06 23:02:09 PDT (-0700)
Viewed: 198 times, last viewed: 2017-06-05 06:24:17 PDT (-0700)