Observation 56544: Cortinarius (Pers.) Gray

When: 2010-10-18

Collection location: Ocean Park, Maine, USA [Click for map]

Who: Erlon (Herbert Baker)

No specimen available


Copyright © 2010 Erlon Bailey
Copyright © 2010 Erlon Bailey

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Erlon (Herbert Baker)
2014-03-11 14:38:18 PDT (-0700)

They come up in the same area each year. I’ll pay closer attention when I find them again. There are some close looking specimens here. http://www.picssr.com/photos/27441280@N06/page30 And here is Cortinarius heaven, http://www.gobe.si/Mikologija/Cortinarius

Most large Cortinarius
By: Christian (Christian Schwarz)
2014-03-11 14:19:53 PDT (-0700)

have a cobwebby veil. But many of those don’t yet have names (or if they do, we are unsure how to apply them).
Without microscopic information and a good look at young fruitbodies, there’s little hope for id to species on these.

Veil reply
By: Erlon (Herbert Baker)
2014-03-11 14:13:24 PDT (-0700)

There are many examples of C. caperatus here at M.O. with a missing annulus. I guess we will just have to disagree for now on this observation. I left a citation for the lilac claim. What large Cortinarius would have a cobweb veil? Any suggestions are welcome. Thank you.

By: Christian (Christian Schwarz)
2014-03-11 13:48:28 PDT (-0700)

Only 2 of the fruitbodies out of all of the ones in the pictures you just linked showed an absence of a veil.

The mushrooms in this observation didn’t ever have an membranous veil, which you can tell because there are actually still veil remnants on the mushroom in the middle of photos in this observation. It’s a cortina (cobwebby), not a membranous annulus.

Even when the annulus in this species is mostly obliterated, there is a trace membranous veil zone (not evident on these). If you look through all the photos on MO and google, there are very few images where no membranous veil traces are left. To have three fruitbodies together that also happen to have purple in the stipe AND non-rivulose caps is really unlikely.

Worse than relying on watered down description is relying on incorrectly broad descriptions. I’ve never heard lilac tones reported for this species, nor have I ever seen any on specimens in the field.

I don’t think C. caperatus is closely related to the mushrooms in this observation.

By: Erlon (Herbert Baker)
2014-03-11 13:16:49 PDT (-0700)

Here’s a pic of the annulus missing on several specimens. It’s not that uncommon to see this. http://4.bp.blogspot.com/... A look at the observations on MO will demonstrate this easily, as well. I believe the radially corrugated cap surface may be more evident before the pileus fully extends. “It may have a lilac tinge when young.” (Phillips R. (2006). Mushrooms.) I should point out that it was raining very heavy for a couple days prior to this.

Here are some more observations from the same location.

To say it’s not even close is an error, I believe. Mushrooms do not adhere to watered down descriptions. I’m not 100% this is C. caperatus but I think based on my own research C. caperatus group is a good guess. If not C. caperatus, it is something very close. Unfortunately, you only have pics to go on and I held these mushrooms in my hand, tasted them, smelled them, and observed the annulus preputialis veil remnants that you don’t see.

Not the Gypsy Mushroom
By: Christian (Christian Schwarz)
2014-03-11 10:51:44 PDT (-0700)

The lack of any membranous PV (not that easily weathered on C. caperatus), presence of purple tones, lack of a significantly wrinkled/rivulose cap, and darker cap color all point strongly away from C. caperatus.

By: Erlon (Herbert Baker)
2014-03-11 00:36:54 PDT (-0700)

Why did you give my suggestion of Cortinarius caperatus group an “as if” vote? I find C. caperatus in this same location every year. To me these just seem weathered. Thank you.

Created: 2010-10-25 07:40:43 PDT (-0700)
Last modified: 2016-10-18 18:37:38 PDT (-0700)
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