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Lichen: Candelariella aurella

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Lichen: Candelariella aurella

Here is a common sight on brick buildings; both walls and roofing tiles (and even roofing felt), Candelariella aurella. This is a mustard coloured foliose lichen that grows outwards in a oval shape, gradually expanding in size as it develops. Once it gets established those dish-shaped discs appear which are the fruiting bodies from which the tiniest of spores are released.

It does no harm to its substrate (or the building in general) but it is tempting to clean it off which is a shame as it is easy to forget it is a living organism that can take years to grow to any size. In any event, it is so successful in its environment you will soon have the beginnings of a new growth to replace it.

It is very common in the south (and so it is in Dorset) and east of England and is relatively pollution tolerant. There are a couple of other similar species but they are less common on brickwork.


 

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This nature note was written by ----> Peter Orchard
This nature nore was written ----> 2 years 7 months ago

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