Trying to make sense of some superficially minutely fruticose, corticolous jelly lichens in Cowal.
Working primarily from the BLS Lichens of Great Britain and Ireland 3 pdfs
Row 1 entire organism
Row 2 surface structure (width ~3mm)
Row 3 cross section from near substrate (bottom left) to surface (top right)
Row 4 cells of the cortex (width ~150µm)
Column 1: this is Scytinium lichenoides with well developed isidia, I think.
Column 2: Scytinium teretiusculum ?
Column 3: Ricasolia virens cyanomorph ?
Column 4: Ricasolia amplissima cephalodium
I recently found a paper describing a cyanomorph of Ricasolia virens. Column 3 conforms very closely to the description given here: The cyanomorph of Ricasolia virens comb. nov. (Lobariaceae, lichenized Ascomycetes) DOI: 10.5962/p.386096
Now updated with a specimen of what I think is Scytinium teretiusculum; which I found for the first time in November.
Other similar things:
Polychidium muscicola and Scytinium pulvinatum - I've only found these in saxicolous situations.
I believe have yet to find Leptogidium dendriscum or a pure cyanomorph of Ricasolia amplissima both of which would fit into this category. Will keep looking.
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