Collection location: Larch Mountain, Multnomah Co., Oregon, USA [Click for map]
Thallus is apple-jade green with white eruptions, sometimes forming near raised veins in broadly foliose section, much like lettuce leaves. Underside comprised of white eroded areas and new growth, becoming buff-brown (similar to brown seaweed), and finally becoming nearly purple-black where holdfasts form. Holdfasts appear to have white cores.
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|I’d Call It That||3.0||5.42||1||(jason)|
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including material I have found at this site, I agree with you. Platismatia glauca.
looks like a very green Platismatia glauca, or “dirty rag” lichen – the presence of white, brown, and black on the underside is a good clue, and the tattered appearance… this is a very variable and common species, often more greyish white but i’ve seen it quite green before too…
Created: 2009-10-05 05:37:23 CEST (+0200)
Last modified: 2009-10-05 05:37:23 CEST (+0200)
Viewed: 61 times, last viewed: 2017-06-06 10:34:48 CEST (+0200)