Images of British Lichens
Leptogium cyanescens (Rabenh.) Körb.
Thallus consisting of thin, papery, undulate, lobes, each approx. 1cm in width, blue-grey, strongly blue-tinted when dry, lobe surfaces smooth but with sparse to abundant laminal and sometimes marginal isidia; apothecia rare. On mossy trees and rocks, especially in old woodland in the oceanic west, a 'Celtic rainforest' species.
Refs: Smith et al. (2009), 546; Purvis et al. (1992), 353; Nordic Lichen Flora (2007) 3: 34, 184 (photo); Dobson (2005), 248-9 (photo); Dobson (2011), 254 (photo); Holien & Tønsberg (2008), 129 (photo); Thor & Arvidsson (1999), 278 (excellent photo); Stenroos et al. (2011) 247 (photo); Thüs & Schultz (2009), 76-7 (photo); Valcárcel et al. (2003), 234-5 (photo, dry); Brodo et al. (2001), 404 (photo); Hinds & Hinds (2007), 289 (photo); McCune & Geiser (2009), 177 (photo).
|In cleft in montane cliff, Beinn Airein, Isle of Muck (BLS meeting), June 2012|
|On mossy branch of Hazel (Corylus avellana), Ardilistry, Islay (BLS meeting), May 2011, material very dry, field shot in difficult light conditions, plus studio shot|
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Uploaded July 2012, last updated August 2013