Observation 83046: Cortinarius sphaerosporus Peck
When: 2011-11-19
Herbarium specimen reported

Notes: These had very viscid caps and stems.
The spores were ~ 6.2-8.0 X 5.1-6.2 microns.
Probably these could be also called Cortinarius delibutus(a European name) but since Peck described the C. sphaerosporus with the smaller spores, which matched nicely, I’ll go with his name until over-ruled.

Proposed Names

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Used references: Mushrooms of North America by Roger Phillips.

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Not delibutus
By: Irene Andersson (irenea)
2011-11-24 07:59:08 EST (-0500)

because that particular species is yellow from the beginning – but I think this is another species in the sect. Delibuti with bluish veil.
In sect. Anomali the veil should be dry and with a colour between reddish brown and pale ochre..

In the C. anomalus group
By: Dimitar Bojantchev (dimitar)
2011-11-24 01:24:34 EST (-0500)

Ron, these are in the C. anomalus gr. — a very diverse group… We have 5-6 species and in Europe they have a few as well. The taxonomy is a mess and the prospect of clearing it up are not very good yet until a bunch of type collections get sequenced. The round spores are very similar in all cases.

Ron, here is what I think you have – fairly common up North.


As they all have round spores, you can call it whatever you like, but keep in mind that you have to make your mind, which one of the 5-7 species Peck had described a C. sphaerosporus and whether we even have it in our area.

On my site I have a lot of C. delibutus photos.

D.

P.S. This site needs to ability to quickly drop a photo/file to augment an observation – it should be a very simple implementation. I like to support my discussions with images, phylogenetic charts, etc. for them to be useful…

unappetizing…really?
By: Debbie Viess (amanitarita)
2011-11-23 10:59:57 EST (-0500)

I remember when I was first starting out and I saw Norm Andreson bite a Russula on a walk…I was disgusted and appalled. Fast forward to a few years ago, when CBS Sunday Morning was filming David and I at Pt. Reyes. I also found a Russula and bit it for ID/the cameras, but you shoulda seen the cameraman’s face! Priceless. and THAT’S entertainment.

No, I didn’t taste this one..
By: Ron Pastorino (Ronpast)
2011-11-23 10:06:30 EST (-0500)

and I guess I should get into the habit, even though many of the Corts seem very unappetizing.
Yes, these do seem different enough from the classic European C. delibutus that maybe Peck was correct in giving them a NA name. There is a chance these are even somewhat different from what he described. I didn’t see any violet tints, even in the young specimens.

Yeah…
By: Douglas Smith (douglas)
2011-11-23 00:34:26 EST (-0500)

I can kinda see C. delibutus here, but not really. I just saw a bunch of that from France this past month. There the cap was consistently a darker tan, and the gills were distinctly lilac when young, but that faded quick enough to tan in age, and then spore color. But yes, very viscid on cap and stipe. Did you taste it at all? Was it at all bitter?

nice collection Ron.
By: Debbie Viess (amanitarita)
2011-11-22 20:57:20 EST (-0500)

Created: 2011-11-22 19:50:18 EST (-0500)
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