Observation 29726: Cortinarius (Pers.) Gray

Dimi has it.

[admin – Sat Aug 14 02:04:59 +0000 2010]: Changed location name from ‘Pt. Reyes NP, Bear Valley, Marin CO, CA’ to ‘Bear Valley, Point Reyes National Seashore, Marin Co., California, USA



Proposed Names

-34% (5)
Recognized by sight: Dimi called it; I thought that it was a cort, in hand.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Erin Page Blanchard (CureCat)
2009-12-11 06:24:26 EST (-0500)

Kind of looks like C. fulvescens, or maybe C. liquidus (though this collection does not seem like a Myxacium)… Though there are deviations microscopically for either species.

Just some shots in the dark.

now the question is…
By: Debbie Viess (amanitarita)
2009-12-10 14:15:34 EST (-0500)

WHICH cort species??! and that is something that only YOU can answer, Dimi…

Despite the shock and horror of an occasional wrong ID, you still be the Cort Man…and we value your opinions highly.

Cortinarius sp.
By: Dimitar Bojantchev (dimitar)
2009-12-10 13:49:56 EST (-0500)

Sorry, further investigation by two more slides showed this not to be a Phaeocollybia, but Cortinarius. Not sure where I did get these clean hyphal ends to simulate cystidia, but apparently what I said below is true — be damned mycologists who can’t use the microscope. I cover my head in a thick layer of dust and beg forgiveness.. Did not realize that the name will reach MO so, so fast, otherwise I’d have kept it secret.

By: Erin Page Blanchard (CureCat)
2009-12-08 01:39:52 EST (-0500)

I stole one of these and stuck it in my hat as decoration, sorry!

At first look I thought it was Inocybe, but the cap was too smooth and the gills too rusty brown, so then I figured Cortinarius, and not wanting to elicit Dimitar’s wrath by using one of his Corts for decoration, I went to choose a different mushroom for my hat.
But then I think Dimi and Tom told me it was Phaeocollybia… Which seemed unlike any species I have yet seen, but then, it was clustered, and who am I to argue with the Cort pro?

Well I will stay posted.

Can I hide?
By: Dimitar Bojantchev (dimitar)
2009-12-08 00:09:02 EST (-0500)

Ok, you guys have decided to torture me tonight, just like she did last night — Debbie just brought my attention to this discussion.. I’m working on some other major collections right now.

Anyway, I picked this collection only on the premise that it was a Cort. I thought so all the way home — the pale stipe and everything. Yet, the long stem and strong raphanoid odor suggested other possibilities. Then when I looked it under I started to see some fasciculate cheilocystidia.


But then I did only one slide and it is perfectly likely that I messed it up – that’s why in my original message to her I said that “I need to do more work”. There is N number of ways to produce crappy microscopic results. I’ve always told Debbie that the only thing worse than a mycologist who doesn’t use scope is the one who abuses it. I might have done that last night. I have the material, I will look at it again when I am fresh. Last night I looked at it after 5 hours of looking at specimens at the MSSF Fair and then a couple of hours of a “Happy Hour” with drinks involved..

Anyway, here is the original message that I sent to Debbie last night:

You chose this mushroom as a design to torture me. This is a Phaeocollybia — with ELLIPSOID spores (not limoniform) ~7×4µ, long CLAMPED cystidia (30-50µ) with thin to semi-thick walls. I can’t decide on the species name — I am very, very tired. The pale stipe confuses me, but it seems close to Ph. dissiliens, but I need to do some more work…


P.S. I’m starting to believe that we work harder than the professionals…

By: Darvin DeShazer (darv)
2009-12-07 18:17:12 EST (-0500)

It sure looks like Cortinarius and that is what I would call it. What Phaeocollybia has an all white stipe? Was the stipe fiberous or cartilaginous?

Created: 2009-12-07 16:17:13 EST (-0500)
Last modified: 2011-04-25 13:39:08 EDT (-0400)
Viewed: 201 times, last viewed: 2017-06-06 07:41:10 EDT (-0400)
Show Log