File:Pea galls on oak - geograph.org.uk - 1449701.jpg
Pea_galls_on_oak_-_geograph.org.uk_-_1449701.jpg (640 × 480 pixels, file size: 94 KB, MIME type: image/jpeg)
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Summary
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| Description |
English: Pea galls on oak The pea galls of the title are the pale globular objects that are attached to the midrib of the leaf and to the side-veins; several examples, of varied sizes, are visible.
These galls, which are caused by the Cynipid wasp species Cynips divisa, are fairly common; they are hard, unlike the currant gall – https://www.geograph.org.uk/photo/1336489 – and they contain a small chamber within which a wasp larva develops. The photo shows two other kinds of gall. The numerous flat reddish-brown objects with central mounds are common spangle galls ( https://www.geograph.org.uk/photo/929354 ). Towards the upper left, on a different leaf, some silk button spangle galls ( https://www.geograph.org.uk/photo/929338 ) can be seen; these are smaller, with a raised rim. At least five types of gall were present on this young tree: three of them are shown in this photo; the others were knopper galls ( https://www.geograph.org.uk/photo/950030 ), and a single mature example of an artichoke gall ( https://www.geograph.org.uk/photo/950022 ). |
| Date | |
| Source | From geograph.org.uk |
| Author | Lairich Rig |
| Attribution (required by the license) | Lairich Rig / Pea galls on oak / |
| Camera location |   | View this and other nearby images on: OpenStreetMap |  |
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| Object location | | View this and other nearby images on: OpenStreetMap | |
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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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 02:43, 2 March 2011 | | 640 × 480 (94 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=Pea galls on oak The pea galls of the title are the pale globular objects that are attached to the midrib of the leaf and to the side-veins; several examples, of varied sizes, are visible. These |
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