Observation 130206: Lichen P. Micheli
When: 2013-02-16
Who: zaca
No herbarium specimen

Proposed Names

29% (1)
Eye3 Eyes3
Recognized by sight

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Eye3 = Observer’s choice
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Comments

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Wow, he has some beautiful shots, and some unusual species
By: Jason Hollinger (jason)
2013-03-22 17:01:53 PDT (-0700)

Yes, his Pyrenopsis does look promising, doesn’t it?

I +/- understandood.
By: zaca
2013-03-22 16:52:44 PDT (-0700)

There are some similar Pyrenopsis, like the one in the webpage of Matthias Schultz.

It just has that look to it…
By: Jason Hollinger (jason)
2013-03-22 16:24:38 PDT (-0700)

It’s a good hypothesis to work with, at least. Crustose cyanolichens are almost all gelatinous / homiomerous (meaning cyanobacteria is distributed evenly throughout and there is little differentiation into medulla and cortices). It is easy to test for… with a microscope! :)

Verrucaria is also black, but it has perithecia not apothecia. Placynthiella, is black too, but it looks really different. Probably others I don’t know. But all the rest I’ve seen (photos of) are cyanolichens, mostly in Lichinales.

I agree …
By: zaca
2013-03-22 15:53:52 PDT (-0700)

it is a spectacular specimen, but I had no clue about its possible classification. Why did you look for a “gelatinous / homiomerous genera”?
Unfortunately, “microscopy” in again a forbidden word, but I preserved a sample and maybe in the future I will back to it.

Beautiful specimen
By: Jason Hollinger (jason)
2013-03-22 11:46:11 PDT (-0700)

This must be one of the crustose gelatinous / homiomerous genera. Just scanning the generic key in British Flora, it looks like these are candidates: Porocyphus, Euopsis, Pyrenopsis, Pterygiopsis (of course there are probably half a dozen others, ugh, difficult group!)

Apparently knowing which type of cyanobacterium is present is helpful, as well as number of cells in the spore.

Created: 2013-03-14 17:09:49 PDT (-0700)
Last modified: 2013-03-14 17:09:55 PDT (-0700)
Viewed: 29 times, last viewed: 2016-10-25 20:21:56 PDT (-0700)
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