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[“Concentric ring lichen”; syn. Parmelia centrifuga, Xanthoparmelia centrifuga]
USES: Dye (Great Britain, Arctic)
Arctoparmelia centrifuga has been used to dye woolens red-brown. Uphof (1959) records this use in Great Britain and Brodo et al. (2001) records this use in the arctic.
Arctoparmelia centrifuga contains usnic acid, atranorin, and alectoronic acid (Brodo et al. 2001).