Found growing in woodland on mossy tree stump
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
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A pity, isn't it, that posts like this elicit so few comments and no support for the ID? Such a good observation with crisp and compelling photos (your first Joyce?).
For a non specialist, supporting the ID is difficult but not impossible. My sources -
http://www.lichens.lastdragon.org/Peltigera_membranacea.html - always worth reading the text! But there is a mention of Peltigera praetextata (minutely felted).
http://www.lichens.ie/lichen-descriptions/foliose/peltigera-membranacea/ always worth a check, but in this case not helpful enough (to me).
But, after an iSpot search, I'm convinced. Revealing over 80 posts some with very valuable comments. One of the best on-line resources for such things..
The one http://www.ispotnature.org/node/258494 says it all.
So (if anyone comes back) is this the original Dog Lichen - (from its early synonym Peltigera canina or are all recumbent, leafy, entangled-with-the-substrate lichens Dog Lichens?
Carl Linnaeus coined the term 'dog lichen' for Lichen caninus, now Peltigera canina (L.) Willd. This and P. membranacea were split from an older name for P. canina. I think it's fair to say that all the common Peltigera spp. are informally dog lichens, but the modern name most deserving of the title is P. canina.
It's great to see this showy genus so well represented on iSpot.
Lat/Lng: 55.2233, -2.5808
OS grid ref: NY631922