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Observed: 27th September 2011 By: Wendy Purvis
Added: 28th September 2011
This was found growing on the wall of a cellar, and did not appear to be connected to any woodwork. It is flat to the wall and grows in concentric rings and then gradually turns darker. It never gets beyond 12cm in diameter. It's been here for a while now but no one knows what it is!