Arthonia varians


Arthonia varians is a parasitic lichen of Lecanora rupicola taking over and blackening the apothecia of that species and retarding their development. 

Identification difficulty

Where its host Lecanora rupicola is present.

When to see it

All year round.

UK Status

Widespread and evidently common where the host occurs, but evidently under-recorded.

VC55 Status

Status in Leicestershire and Rutland not known.

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Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map