Observation 203086: Arthonia elegans (Ach.) Almq.
When: 2015-04-18
Who: zaca
No herbarium specimen

Notes: Growing on the bark of an oak tree.

Proposed Names

-86% (1)
Recognized by sight
86% (1)
Eye3 Eyes3
Used references: British Flora: Smith et al. (eds), The Lichens of Great Britain and Ireland, The British Lichen Society, 2nd ed., 2009.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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I was well deceived;
By: zaca
2015-04-21 19:29:53 CEST (+0200)

After all it was not Arthonia cinnabarina but his cousin A. elegans.
In fact, it reacts K+ purple/violet (quickly disappearing) and has much smaller and less sepate spores. It was observed in a place visited for the first time and I was astonished with the amount of specimens existing there, which I thought to be all A. cinnabarina. So, either the two species are mixed or this is the lair of A. elegans. I uploaded some photos showing the proliferation of specimens at the trunks of some oaks.

Created: 2015-04-20 22:26:30 CEST (+0200)
Last modified: 2015-04-21 19:32:13 CEST (+0200)
Viewed: 39 times, last viewed: 2016-09-27 01:56:56 CEST (+0200)
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