File:Galls scattered over alder leaf - geograph.org.uk - 957963.jpg
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Galls_scattered_over_alder_leaf_-_geograph.org.uk_-_957963.jpg (640 × 480 pixels, file size: 82 KB, MIME type: image/jpeg)
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| Description |
English: Galls scattered over alder leaf. Two kinds of leaf gall were present in abundance on the native alder trees (Alnus glutinosa) in this area; both kinds could often be found on the same tree.
The growths shown in this photo are caused by the gall mite Eriophyes laevis, and they are scattered over the upper surface of the leaf; on the underside, there are only small inconspicuous openings. Many leaves were much more densely galled than this, sometimes to the extent that the leaves became quite distorted. The other variety of gall that was present on these trees is shown here: 957964. |
| Date | |
| Source | From geograph.org.uk |
| Author | Lairich Rig |
| 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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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 | |
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| current | 13:21, 22 February 2011 | | 640 × 480 (82 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=Galls scattered over alder leaf Two kinds of leaf gall were present in abundance on the native alder trees (Alnus glutinosa) in this area; both kinds could often be found on the same tree. The gr |
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