Usnea wasmuthii Parmeliaceae
Usnea wasmuthii

Growth type fruticose
Chemical reactions are variable, either soralia and medulla K-, P- or soralia K+ yellow-orange to red, P+ yellow after 1 minute.

Local distribution on deciduous trees, mainly N and W Britain and Ireland.

Very similar to Usnea subfloridana but soralia more oval and isidiomorphs +/- restricted to main branches. Base blackened but with a different cracking-pattern. Apothecia absent.

Easily confused with U. subfloridana, P+ yellow-orange instantly


Usnea wasmuthii


Usnea wasmuthii


Usnea wasmuthii
Usnea wasmuthii
Arne, Dorset. February 2014

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