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Images of British Lichens



Cladonia rangiformis Hoffm.


Podetia greyish, richly branched, commonly terminating in spiky tufts with pointed, dark apices, surface of podetia appearing speckled, with groups of green algal cells on a paler background, testing yellow with potassium hydroxide (K+); pycnidia and apothecia dark brown, on the tips of branches. Widespread, generally on dunes or in rather dry, neutral to basic grassland.

Refs: Smith et al. (2009), 334; Purvis et al. (1992), 209; Nordic Lichen Flora (2013) 5: 69, 106 (photo); Dobson (2005), 144 (photo); Dobson (2011), 151 (photo); Whelan (2011), 79 (photo); van Herk & Aptroot (2004, 2013), 154-155 (photo); Aptroot et al. (2011), 108-9 (photos); Krog et al. (1994), 167 (photo); Stenroos et al. (2011), 165 (photo); Wirth (1995), 1: 308, 309 (photo); Wirth et al. (2004), 77 (photo); Wirth, Hauck & Schulz (2013), 1: 373, 407 (photo); Valcárcel et al. (2003), 168-9 (photo); Thomson (1967) 117, plate 15 fig. 74; Lichen Atlas of the British Isles 2: 412 (1996).

Cladonia rangiformis
In dune heath, Shewelton Pits, Ayrshire, May 2009.
 
Cladonia rangiformis
Cladonia rangiformis, enlarged view
In sandy heathland, Thetford, Norfolk, April 2010. Note developing apothecia on some of the branches.
 
Cladonia rangiformis
Cladonia rangiformis, enlarged view of podetial tips
In sandy ground at edge of pine (Pinus sylvestris) forest, Clashmore, East Sutherland, August 2006


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Uploaded March 2008, last updated January 2014