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Lichen


Lichen
Photo Information
Copyright: Jean Dwyer (jean11-3) Gold Star Critiquer/Gold Note Writer [C: 591 W: 0 N: 661] (2861)
Genre: Places
Medium: Color
Date Taken: 2007-06-11
Categories: Nature
Camera: Sony cybershot DSC-N1
Exposure: f/4, 1/320 seconds
More Photo Info: [view]
Photo Version: Original Version, Workshop
Date Submitted: 2007-06-24 16:41
Viewed: 463
Points: 6
[Note Guidelines] Photographer's Note
There are 1355 British species of lichen,of which 500 grow on trees and shrubs.The rest grow on walls,roofs,gravestones,rocks, chalk grasslands, heathlands and sand dunes.

Lichens do not have roots, but absorb water and gases through their upper surface, and are therefore sensitive to atmospheric pollution.For this reason they are rarely found around cities and grow best on the wetter, west side of the British Isles.

Disappearance of lichen species can be used to detect rising levels of air pollution.

There are three main types,this is in the encrusting form,possibly Xanthoria,which grows on roofs, walls, gravestones and tree trunks.

I liked the bright colour as it showed up so well against the grey of the stone wall.

Thanks for looking.
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Critiques [Translate]

Interesting textures.
The picture looks a bit flat though and needs some pepper :-)

please see my WS

Hi Jean,
I think this is the first lichen photo seen by me on TL. Great idea and good presentation. Congrats!

Kindly regards,
Ioana

Hi Jean.
Interesting color and texture.
Good contrast yellow v/s grey.
Regards
renzo

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