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Images of British Lichens
Lecanora aitema (Ach.) Hepp
Thallus often in small patches, cream-white, granular to cracked-areolate; apothecia clustered, becoming convex, with thick margins that become turned under, discs pale brown becoming dark red-brown or blackish; on acidic bark, twigs and old, worked wood, widespread but predominantly in the north and west.
Refs: Smith et al. (2009), 475; Purvis et al. (1992), 298; Dobson (2011), 218 (photo); van Herk & Aptroot (2004), 200-201 (photo).
Sometimes parasitised by Phaeosporobolus alpinus, which further blackens the apothecia (see below). |
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On old, worked wood, Braemar, Aberdeenshire, March 2008
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| On ancient, wooden bridge, Mar Estate, Aberdeenshire, parasitised by Phaeosporobolus alpinus, April 2008 |
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Uploaded May 2011, last updated November 2011
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