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  #1  
Old 13th March 2011
Ellie Ellie is offline
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An encrustation of Lichen.

Taken at Keyhaven where this stuff grows in abundance. Haven't a clue what species might be in the picture.



I toyed with the idea of cropping out the bit of barbed wire, but decided it gave an idea of scale.
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Old 13th March 2011
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Re: An encrustation of Lichen.

You seem to have at least 3 there. The ones with tubular like filaments, in the middle, look like an Usnea of some kind. The one with flattened leaves is something different, I can't really tell what - lets say a Parmelia. And the small bright yellow bits look like like a Xanthia (they like diesel or the output of cows or birds bottoms, so very common by a road or where cattle congregate or under a roost).

Wild guesses of course
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Old 14th March 2011
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Re: An encrustation of Lichen.

Thanks for the info John, I wouldn't have known where to start identifying them.

They were photographed somewhere about here - an old road that's now a footpath with reedbeds to one side and salty scrubland to the south and west ... then the sea. I'm fairly sure both sides are managed as reserves.

There are also a few trees covered with the yellow one (Xanthia?), mostly Elder I think - but I don't think there's much diesel in the area because there's virtually no traffic apart from the occasional Warder or Ranger, certainly not for the past 15+ years because I think that's how long the road has been closed to traffic.
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Old 14th March 2011
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Re: An encrustation of Lichen.

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Originally Posted by Ellie View Post
Thanks for the info John, I wouldn't have known where to start identifying them.
They're tough - We remove a lot when climbing and I thought I'd better make sure I wasn't removing the last specimen on earth of a rare one, so I did a course at the local Natural History Society. The lichenologist doing the course was actually pretty unphased by lichen dying out, she was more interested in what was going on in the environment to make it happen.

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There are also a few trees covered with the yellow one (Xanthia?), mostly Elder I think - but I don't think there's much diesel in the area because there's virtually no traffic apart from the occasional Warder or Ranger, certainly not for the past 15+ years because I think that's how long the road has been closed to traffic.
Probably bird lime from roosts then. It doesn't take much. Any chicken farms nearby?
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Old 14th March 2011
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Re: An encrustation of Lichen.

Interesting image Ellie, I'm glad John knows what they are as I would not have a clue.
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Re: An encrustation of Lichen.

Don't quote me mind, it's very possible I've got them wrong! They are very difficult to id from a picture alone, as are all fungi.

For those interested "Lichens: An Illustrated Guide to the British and Irish Species" by Frank Dobson is the bible. It has all the info you'd need, a beginner with a bit of botanical experience could use it to identify many species.
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Old 14th March 2011
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Re: An encrustation of Lichen.

I just looked up Amazon for the book.
It seems to be out of print. Prices were about 80.
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Old 14th March 2011
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Re: An encrustation of Lichen.

I think you can still get hold of it, but aye it's pricey (65)
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Old 14th March 2011
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Re: An encrustation of Lichen.

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Originally Posted by jdal View Post
Probably bird lime from roosts then. It doesn't take much. Any chicken farms nearby?
Don't think so, but it's a mile or so from a landfill site there are a lot of birds in the area - would they do?

There's quite a lot of the yellow stuff (Xanthia?) on the coping stones around the harbour, I'd guess it's encouraged by the seagulls.

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I just looked up Amazon for the book.
It seems to be out of print. Prices were about 80
And it's 199 from Waterstones!

I've had a rummage, it looks as if you can download various pdf identification sheets, including some by Dobson, here and there's a softcover of the book listed here for 28.73, but it's in USA.
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Old 16th March 2011
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Re: An encrustation of Lichen.

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Originally Posted by Ellie View Post

I've had a rummage, it looks as if you can download various pdf identification sheets, including some by Dobson ....
The tutor at my course recommended these sheets. I've got a few and they are very good.
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