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Images of British Lichens

Rimularia gyrizans (Nyl.) Hertel & Rambold

Thallus a grey-brown, cracked-areolate crust; apothecia minute, black, set in the thallus surface. On montane rocks, especially schist, in the north and west.

Refs: Smith et al. (2009), 810; Purvis et al. (1992), 328 (as Lecidea gyrizans).

Rimularia gyrizans
On upland boulder, Braemar, Aberdeenshire, March 2008

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Uploaded August 2009, last modified November 2011