Melanelixia subaurifera (images of British lichens)

Thallus green to dull brown, matt to moderately shiny, surface with sparse to clustered punctate soralia and soft, globose isidia about 0.2mm (to 0.4mm) in height, leaving white or yellow scars when rubbed off. On trees, especially the smaller branches and twigs, rarely rocks, generally common throughout Britain.

Refs: Smith et al. (2009), 572; Purvis et al. (1992), 433 (as Parmelia subaurifera); Dobson (2005), 264 (photo, as Melanelia); Dobson (2011), 268 (photo); Jahns (1983), 200-1 (photo, as Parmelia); van Haluwyn et al. (2009), 62-3 (photo); van Herk & Aptroot (2004), 246-247 (photo, as Melanelia); Nordic Lichen Flora (2011) 4: 75, 160 (photo, printed too dark); Wirth (1995), 2: 642, 657 (photo, as Parmelia); Frahm et al. (2010), 116 (photo); Puntillo (1996), plate 29 (photo, as Parmelia); Hinds & Hinds (2007), 319-320 (photo, as Melanelia) (recommended reference); Brodo et al. (2001), 439-440 (photo, as Melanelia); Walewski (2007), 112 (photo, as Melanelia); McCune & Geiser (2009), 199 (photo).

Closely similar is M. fuliginosa subsp. glabratula (q.v.), with which it often grows.

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Images of British Lichens