A slime mould - Arcyria cinerea
Introduction
The photograph on this page of A slime mould - Arcyria cinerea by Lairich Rig as part of the Geograph project.
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Image: © Lairich Rig Taken: 10 Aug 2013
These are the sporangia (spore-producing structures) of Arcyria cinerea, a fairly common species that is often found on well-rotted wood (as in this case). Not all of the sporangia are at the same stage of development; this accounts for the variation in colour.