File:A lichen - Parmelia ernstiae - geograph.org.uk - 1213636.jpg
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Captions
Captions
A lichen - Parmelia ernstiae
Summary
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| Description |
English: A lichen - Parmelia ernstiae. In most respects, this lichen resembles 1184056, but is rarer; like P. saxatilis, it has a network of pale lines on its lobes, and isidia (see the item just cited) are present. However, the centre of this lichen is densely covered in small lobules, a distinctive feature of this species.
The tree on which this lichen is growing supported a much richer flora than its near neighbour. In a given area, the number of lichen species found on a tree depends to a large extent on the texture of its bark; most species are better able to establish themselves on rough bark (although there are a few species that favour a smooth surface). Another important factor is the pH of the bark, which can vary greatly between different tree species. |
| Date | |
| Source | From geograph.org.uk |
| Author | Lairich Rig |
| Attribution (required by the license) | Lairich Rig / A lichen - Parmelia ernstiae / |
| Camera location |   | View this and other nearby images on: OpenStreetMap |  |
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_heading:90.00&language=en){kind=link}
| Object location | | View this and other nearby images on: OpenStreetMap | |
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_heading:90.00&language=en){kind=link}
Licensing
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This image was taken from the Geograph project collection. See this photograph's page on the Geograph website for the photographer's contact details. The copyright on this image is owned by Lairich Rig and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
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This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: Lairich Rig
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 05:54, 26 February 2011 | | 640 × 480 (150 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=A lichen - Parmelia ernstiae In most respects, this lichen resembles 1184056, but is rarer; like P. saxatilis, it has a network of pale lines on its lobes, and isidia (see the item just cited) a |
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