Images of British Lichens
Solenopsora holophaea (Mont.) Samp.
Thallus placodioid to squamulose, forming small to large patches, red- to grey-brown, olive green when wet, lacking soredia or isidia; apothecia to 1mm diameter, red- to dark brown, initially with pale, thalline rims but these soon excluded (turned back). More or less confined to the west coast, on damp, sheltered, rock-faces and sometimes on walls, very rare elsewhere.
Refs: Smith et al. (2009), 843; Purvis et al. (1992), 565; Dobson (2005), 406-7 (photo); Dobson (2011), 412 (photo); Whelan (2011), 141 (photo); Wirth et al. (2004), 168 (photo).
Bears some resemblence to Squamarina cartilaginea and Romjularia lurida (pages pending).
|Damp, coastal rock-face, by Port Mòr, Isle of Muck (BLS meeting), July 2012, material greenish after heavy rain|
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Uploaded July 2012, updated October 2013