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 19:48:40 GMT (+0000)
Last modified: 2010-03-21 19:48:40 GMT (+0000)
Viewed: 40 times, last viewed: 2017-06-07 01:30:45 BST (+0100)
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