Parmotrema perlatum - Parmotrema perlatum
A relatively large and leafy lichen. It is pearly grey when dry, but greener when damp and often with a blackish whiskery margin.
Usually on tree trunks, sometimes on bushes and rocks.
All year round.
Widespread, common in much of western and southern Britain; until recently largely absent from central and eastern England as a result of sulphur dioxide pollution, but now rapidly re colonising these areas as levels have dropped.
Probably increasing in Leicestershire and Rutland.
Leicestershire & Rutland Map
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