Observation 116657: Pirex concentricus (Cooke & Ellis) Hjortstam & Ryvarden

When: 2012-11-13

Collection location: Bear Trap, Siskiyou County, California, USA [Click for map]

Who: Christian (Christian Schwarz)

No specimen available

I honestly have no idea.

Proposed Names

-11% (3)
Recognized by sight
10% (3)
Used references: else
14% (2)
Recognized by sight
-16% (2)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Danny Newman (myxomop)
2015-03-19 21:36:40 +03 (+0300)

want to see this scoped.

By: Danny Newman (myxomop)
2013-01-21 01:25:16 +03 (+0300)
By: else
2012-11-15 07:35:47 +03 (+0300)

sure, Mycoacia uda has regular spines, but species like Mycoacia fuscoatra and M. nothofagi are really irregular. check them out!

By: Christian (Christian Schwarz)
2012-11-15 07:05:10 +03 (+0300)

I also think it probably belongs to another family, but I’m not sure where it is best placed.

By: Danny Newman (myxomop)
2012-11-15 05:08:48 +03 (+0300)

as I’ve seen it, has more isolated, clearly defined “teeth,” like a resupinate Hydnum. these appear firmer and more lobed.

By: else
2012-11-15 04:59:21 +03 (+0300)

some Mycoacia species, such as M. uda and M. fuscoatra, turn bright purple-pink with KOH.
Mycoacia is by some authors considered a synonym of Phlebia.
I don’t think that this is in the Hymenochaetaceae.

By: Danny Newman (myxomop)
2012-11-14 20:57:34 +03 (+0300)

perhaps one of the polyporic acids. I wonder if Mike Beug’s musings here:


begot any further investigation.

By: Christian (Christian Schwarz)
2012-11-14 18:26:55 +03 (+0300)

vinaceous purple. A bit unexpected for me, since I rarely spend time with these crusty things.

no KOH test done, i take it?
By: Danny Newman (myxomop)
2012-11-14 11:00:54 +03 (+0300)

ID or none, it’s a looker. a cross between a beehive and homemade candy corn…

Created: 2012-11-14 05:30:08 03 (0300)
Last modified: 2016-02-04 19:31:42 03 (0300)
Viewed: 223 times, last viewed: 2017-11-15 05:35:19 03 (0300)
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