Lichen: Graphis scripta | Nature Notes from Dorset

Until I happened to be looking in my reference book for a lichen I had seen and stumbled across something called Graphis scripta I had always assumed that the black marks one often sees on silver birch bark were just blemishes in the bark itself! How wrong I was. These black marks are, indeed, a lichen that is common on smooth barked trees but it shows up best against the pale coloured silver birch.


Read more: Lichen: Graphis scripta | Nature Notes from Dorset

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