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Images of British Lichens



Cladonia glauca Flörke


Podetia ash-grey, slender, commonly unbranched, taperered to a point, usually with a longitudinal fissure that may be hidden by soredia, ecorticate and greyish farinose-sorediate almost to base, usually sparsely squamulose in lower part, basal squamules small; apothecia brown, rare, pycnidia at tips of podetia, pointed, narrowly conical. Widespread but local, on acid, rotting wood, heaths and drying peat surfaces; easily confused with similar species if critical features are not checked.

Refs: Smith et al. (2009), 329; Purvis et al. (1992), 205; Nordic Lichen Flora (2013) 5: 44, 100 (photo); Dobson (2005), 139 (photo); Dobson (2011), 147 (photo); van Herk & Aptroot (2004, 2013), 144-5 (photo); Aptroot et al. (2011), 78-9 (photos); Krog et al. (1994), 158 (photo); Stenroos et al. (2011), 140 (photo); Wirth (1995), 1: 300, 328 (photo); Wirth, Hauck & Schulz (2013), 1: 377 (photo); Thomson (1967) 132, plate 20 fig. 93 (photo); Hinds & Hinds (2007), 184 (photo); Lichen Atlas of the British Isles 5: 391 (2000).

 
Cladonia glauca
Cladonia glauca
On old, fallen pine (Pinus sylvestris) trunk, Muirshiel, Renfrewshire, March 2009
 
Cladonia glauca
Cladonia glauca, podetial base
Degraded moorland, Glen Shee, Aberdeenshire, August 2008 (with C. furcata)


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Uploaded April 2009, last updated January 2014