Observation 223496: Ionomidotis irregularis (Schwein.) E.J. Durand

Growing on a well-rotted fallen beech tree. Outer surface dusty and leaving a brown residue on my fingers.

Proposed Names

50% (3)
Eye3 Eyes3
Used references: Ascomycete Fungi of North America
14% (2)
Based on microscopic features: micro?
Based on chemical features: koh extractable pigments?

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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By: Danny Newman (myxomop)
2015-11-30 15:32:50 PST (-0800)

looking forward to a follow-up.

Hayes Arboretum
By: Django Grootmyers (heelsplitter)
2015-11-25 20:39:44 PST (-0800)

contains ~3% of all of Indiana’s old-growth forest. There are beech trees over 400 years old very close to where this was found. I just skimmed “The Genera Midotis, Ionomidotis and Cordierites” and this seems like the most likely species based on size and where it was found, but I’ll check it out under my microscope to confirm.

That’s a start
By: Danny Newman (myxomop)
2015-11-25 19:46:07 PST (-0800)

But this is a species which likely only occurs in old growth forest, and it’s identity should really be confirmed with micro.

By: Django Grootmyers (heelsplitter)
2015-11-25 18:13:04 PST (-0800)

^I put a piece of a more recent specimen from the same cluster in KOH and it turned it dark purplish brown.

Created: 2015-11-20 23:18:18 PST (-0800)
Last modified: 2018-02-23 21:10:47 PST (-0800)
Viewed: 100 times, last viewed: 2018-05-23 16:54:50 PDT (-0700)
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