PhilT69's picture

Pannaria rubiginosa

Observed: 20th March 2012 By: PhilT69PhilT69’s reputation in Fungi and LichensPhilT69’s reputation in Fungi and LichensPhilT69’s reputation in Fungi and Lichens
Pannaria rubiginosa

Thallus slightly darker bluish-grey, with radiating frilly-edged lobes about 4 or 5mm across. The apothecia are pale chestnut colour, with crenulate margin. On willow in ravine facing the Atlantic. The second photo is the combined growth of the two lichen spp.


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Species interactions

No interactions present.


AlanS's picture

Growing over ..

Growing over Degelia cyanoloma - which is the larger lichen with the brown apothecia without distinct margins.


Note added in edit: Just to clarify, Degelia cyanoloma might have pale margins to the apothecia, so-called 'proper' margins, but it lacks the 'distinct 'thalline' margins (an extension of the thallus running up the side of the apothecium) that are seen in Pannaria rubiginosa.

Having said this, all D. cyanoloma that I have seen has not shown paler apothecial margins at all, whereas they are usually readily visible in D. plumbea.