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Cyphelium inquinans (Sm.) Trevis.


Thallus pale grey, rather thick, warted; apothecia black, with thin but rather conspicuous, grey, thalline margins when young, becoming more convex when mature and producing a powdery mass of dark spores (test with finger-tip). Widespread but predominantly in the south-east, on fence-posts and worked wood, and on acid-barked trees.

Refs: Smith et al. (2009), 366; Purvis et al. (1992), 228; Dobson (2005), 158 (photo); Dobson (2011), 164 (photo); Nordic Lichen Flora (1999) 1: 50, 88 (photo); Arup et al. (1997), 176 (photo); Frahm et al. (2010), 77 (photo); Wirth, Hauck & Schulz (2013), 1: 442 (photo); Puntillo (1996), plate 15 (photo); Brodo et al. (2001), 292 (photo); Thomson (1997), 211, 212 (photo).

 
Cyphelium inquinans
Cyphelium inquinans, enlarged view
On trunk of old Scots Pine (Pinus sylvestris), Mar Estate, Aberdeenshire, April 2008


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Uploaded October 2009, last updated September 2013