Observation 93689: Phlyctis agelaea (Ach.) Flotow
When: 2012-04-22
Who: zaca
No herbarium specimen

Notes: I have the feeling that I’m about solving one of my lichen misteries. This lichen seems a perfect copy of those in my previous observations MO77763 and MO77933. At the time of these observations, due to the microscopic features, I saw no better choice than Biatoridium, though the morphology was not similar as I point out there. The main reason for that choice was that I interpreted as asci with very many spores those that (seems now) to be big mural spores. This changes the thing completely. In particular, it rules out Biatoridium an opens new perspectives for the classification. As I mentioned in the first of those observations, when I saw it for the first, it reminds me of a Pertusaria. But there is another “close” genus: Phlyctis and, particularly, a species that fits all the details: Phlyctis agelaea. In fact, this species contrary to the most commom P argena is usually fertile, though with half-hidden apothecia, has big mural spores and its chemical reactions are those of my specimens. Therefore, I (now) believe that all these specimens belong to this species. At the end, it was a question of pressure on the cover-slit …

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Yes, …
By: zaca
2012-05-01 16:17:30 CDT (-0500)

all the light colored warts are apothecia.

Well done!
By: Jason Hollinger (jason)
2012-05-01 16:05:49 CDT (-0500)

Are the apothecia hidden within the wart-like structures?

Created: 2012-05-01 15:59:54 CDT (-0500)
Last modified: 2012-05-01 16:05:20 CDT (-0500)
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