Lecanora sinuosa?

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Glos lichens
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Lecanora sinuosa?

Post by Glos lichens » Mon Jul 08, 2019 7:53 pm

Is this OK for Lecanora sinuosa?
It was on a youngish carpark Ash next to Bristol floating harbour.
K+ yellow, Pd-.I would interpret the crystals of the epithecium as being small and descending between the paraphyses. They are soluble in K.
I only took a little bit, and there were no good asci with mature spores in the two fruit I have examined.

By the way, thanks Neil for the posting of all the Lecanora chlarotera look-alikes. Very worrying!
Juliet
Attachments
Lecanorasinuosa_20190707_213555_7070081.jpg
Lecanorasinuosa_capture000026.jpg
Apothecial section in water
Lecanorasinuosa_capture000027.jpg
Same section under polarising light
Lecanorasinuosa_capture000037.jpg
Close-up showing brown pigmentation of epithecium
Lecanorasinuosa_capture000038.jpg
Same close-up under polarising light showing trails of small crystals between the paraphyses.

Neil Sanderson
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Posts: 57
Joined: Tue Jan 08, 2019 7:30 am

Re: Lecanora sinuosa?

Post by Neil Sanderson » Mon Jul 08, 2019 9:34 pm

Juliet

Looks OK to me, the disk is also visibly pruinose, which is a good field lead in to Lecanora hybocarpa/Lecanora sinuosa.
By the way, thanks Neil for the posting of all the Lecanora chlarotera look-alikes. Very worrying!
It is a bit, I am finding Lecanora hybocarpa is often the dominant Lecanora chlarotera group species across the south, at least on branches and open habitats

Neil
Neil Sanderson

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