Previous page Next page
 
lastdragon.org

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; apothecia rare, dark grey, pruinose. Widespread and locally common on bark, sometimes overgrowing mosses, 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, 2013), 296-7 (photo); Wirth (1995), 2: 721 (photo), 722 (photo); Wirth et al. (2004), 301 (photo); Wirth, Hauck & Schulz (2013), 2: 865 (photo); Frahm et al. (2010), 86 (photo); Moberg & Holmåson (1984), 132 (photo); Holien & Tønsberg (2008), 181 (photo); Stenroos et al. (2011), 350-1 (photos); Valcárcel et al. (2003), 304-5 (photo); Puntillo (1996), plate 31 (photo); Brodo et al. (2001), 545 (photo); Walewski (2007), 103 (photo).

 
Phlyctis argena, showing ultimately red KOH reaction
Kindrogan, Perthshire, March 2008, showing KOH reaction
 
Phlyctis argena, showing ultimately red KOH reaction
Kindrogan, Perthshire, April 2002, showing KOH reaction


Previous page   Next page



Lichens HOME PAGE | Index of Species | Conditions of Use and e-mail contact | References | Site Home Page


© A.J. Silverside
Uploaded June 2008, last updated December 2013 (first posted at www-biol.paisley.ac.uk, January 2003)