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Images of British Lichens
Phlyctis argena (Spreng.) Flot.
Thallus a white to grey crust, reacting yellow to slowly red with KOH, with diffuse, extensive, pale greenish soralia that erode leaving raised lines. Widespread and common on bark, sometimes on walls.
Refs: Smith et al. (2009), 696; Purvis et al. (1992), 465; Dobson (2005), 335 (photo); Dobson (2011), 336 (photo); van Haluwyn et al. (2009), 154-5 (photos); van Herk & Aptroot (2004), 296-7 (photo); Wirth (1995), 2: 721 (photo), 730; Wirth et al. (2004), 301 (photo); Frahm et al. (2010), 86 (photo); Moberg & Holmåson (1984), 132 (photo); Holien & Tønsberg (2008), 181 (photo); Puntillo (1996), plate 31 (photo); Brodo et al. (2001), 545 (photo); Walewski (2007), 103 (photo). |
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Kindrogan, Perthshire, March 2008, showing KOH reaction
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| Kindrogan, Perthshire, April 2002, showing KOH reaction |
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© A.J. Silverside
Uploaded June 2008, last updated December 2011 (first posted at www-biol.paisley.ac.uk, January 2003)
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