Observation 63145: Cortinarius subgenus Myxacium (Fr.) Fr.

Probably would have been called a Thaxterogaster until recently… don’t know if they have been reassigned.

The bands of tissue under a viscid layer (just like C. trivialis sensu CA), non-percurrent and easily-detached stipe, and very pale cap make it a poor match for T. pinguis.

Odor briny, like low tide or kelp.


Copyright © 2011 Christian F. Schwarz
Copyright © 2011 Christian F. Schwarz
Copyright © 2011 Christian F. Schwarz

Proposed Names

-57% (1)
Recognized by sight: Looks just like a pale C. trivialis. but with completely sequestrate spores.
57% (1)
Eye3 Eyes3
Recognized by sight: Looks just like a pale C. trivialis. but with completely sequestrate pores.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
I look forward to the write-up on these!
By: Debbie Viess (amanitarita)
2017-04-16 17:33:28 CDT (-0400)

way cool find.

GenBank KY907176
By: Alan Rockefeller (Alan Rockefeller)
2017-04-16 17:28:47 CDT (-0400)
what does the micro show?
By: Debbie Viess (amanitarita)
2013-07-21 13:59:29 CDT (-0400)

specifically in the Arcangeliella vs the Lactarius? How are the spores borne on the Arcangeliella? Can they still be discharged, at least in theory? In other words, do the spores have a lateral attachment to their basidia, regardless of whether or not the distorted gills makes normal sporedrop impossible?

I might have some Arcangeliella kicking around in my herbarium, but my file retrieval system sucks!

Form or species.
By: Noah Siegel (Noah)
2013-07-20 22:16:33 CDT (-0400)

Debbie brings up a good point. Where do you draw the line? Does a secotioid form represent a new/different species? Even though in some cases the lines are blurred.

See for instance Lentinus tigrinus and Lentinus tigrinus forma secotioides.

Or in CA, Lactarius pallidiolivaceus and Arcangeliella desjardinii

These are from the same patch, if you found the two on the left you would call them Lactarius pallidiolivaceus and not think twice about it, the two on the right are classic Arcangeliella desjardinii, the one in the middle has “normal” gills around the stipe, but they are a contorted mass around the margin.

Gastroboletus vividus and Boletus smithii are two very closely related species, but close enough to considered the same thing? Or have they had enough separation and environmental pressure to evolve into different species?

it would be nice to run the DNA here…
By: Debbie Viess (amanitarita)
2013-07-20 17:02:21 CDT (-0400)

and see if this might be an exact match with a known normal cort (esp. now that Dimitar has such a large CA cort genetic database), much like my secotioid Inocybe turned out to be an exact genetic match with a normal-gilled Inocybe sp., newly described from the Sierra.

By: Sam.Schaperow (SamSchaperow)
2013-03-27 12:49:30 CDT (-0400)
nice find, Christian.
By: Debbie Viess (amanitarita)
2011-03-26 18:00:31 CDT (-0400)
By: Dimitar Bojantchev (dimitar)
2011-03-13 23:03:13 CST (-0500)

This is a spectacular collection, never seen something quite like it. It is either close to C. trivialis, as suggested, or to C. vanduzerensis, which are less related than previously thought. One look at the spores will reveal that.


Created: 2011-02-06 17:57:34 CST (-0500)
Last modified: 2017-04-16 17:28:24 CDT (-0400)
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