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Cladonia incrassata Flörke


A tiny lichen with grey-green, much incised basal squamules, to 4mm, granular-sorediate on margins and beneath, podetia minute, cylindrical, to 5mm but often hardly formed, arising from the squamule surfaces; apothecia red, button-like, on the tips of the podetia or subsessile on the squamule surfaces. On peat, especially cut surfaces, and on rotting wood in old woodland, widespread but very local.

Refs: Smith et al. (2009), 330; Purvis et al. (1992), 199; Nordic Lichen Flora (2013) 5: 50, 101 (photo); Dobson (2005), 130 (photo); Dobson (2011), 139 (photo); van Herk & Aptroot (2004, 2013), 148-9 (photo); Aptroot et al. (2011), 86-7 (photos); Thor & Arvidsson (1999), 250 (photo); Arup et al. (1997), 172 (photo); Stenroos et al. (2011), 145 (photo); Thomson (1967) 69, plate 2, fig.12 (photo); Brodo et al. (2001), 257-8 (photo); Hinds & Hinds (2007), 187 (photo); Lichen Atlas of the British Isles 2: 394 (1996).

FGBI: http://fungi.myspecies.info/all-fungi/cladonia-incrassata

 
Cladonia incrassata
Cladonia incrassata
Cladonia incrassata, enlarged view
On cut, rotting, vertical surface of oak (Quercus) log, Ashton Court, Bristol, February 2013 (BLS meeting)


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© A.J. Silverside
Uploaded January 2014, updated January 2016