Observation 34962: Pertusaria trachythallina Erichsen

Notes:
On the upper trunk of a recently fallen red maple.

Note that the apothecia are not truly sorediate, even though they look like it. I guess that is just medulla gone wild, because it is just cottony hyphae in a mass, with no algae at all (soredia are both fungal hyphae and algae).

Images

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verrucae at 30x
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“sorediate” apothecium at 30x

Proposed Names

87% (1)
Eye3 Eyes3
Based on microscopic features: K+ deep yellow medulla
Based on chemical features: huge smooth spores

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2010-03-21 20:48:40 CET (+0100)
Last modified: 2010-03-21 20:48:40 CET (+0100)
Viewed: 41 times, last viewed: 2018-07-16 19:49:07 CEST (+0200)
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