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Images of British Lichens

Cladonia diversa Asperges ex S.Stenroos

Podetia cup-shaped, yellow-green, exterior surface and inside of cup densely covered with small, corticate granules, exterior also with small squamules, which may be longer and more numerous at the base, lacking soredia, margins with minute, bright red pycnidia; apothecia bright red, conspicuous, on irregular and distorted podetia. Widespread and locally common on heaths, dunes, rotting stumps and in rock crevices.

Much the most widespread and common of a difficult group of species formerly called "C. coccifera", true C. coccifera being rare, montane and confirmed only in the Scottish Highlands.

Refs: Smith et al. (2009), 324; Purvis et al. (1992), 197 (under C. coccifera); Nordic Lichen Flora (2013) 5: 38, 98 (photo, immature); Dobson (2005), 129-30 (photo); Dobson (2011), 138 (photo); Allen (2007), 23 (photo); Whelan (2011), 71 & 72 (photos); Aptroot et al. (2011), 62-3 (photos, as C. coccifera); Stenroos et al. (2011) 134 (photo, immature); Lichen Atlas of the British Isles 5: 1749 (2000).


Cladonia diversa, apothecial state
Cladonia diversa, apothecial state
Apothecial state, on acid dune system, Findhorn, Morayshire, April 2009
Cladonia diversa, pycnidial state
Pycnidial state, Mar Estate, Aberdeenshire, April 2008
Cladonia diversa, pycnidial state
Pycnidial state, Gleniffer Braes, Renfrewshire, March 2009

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Uploaded March 2009, last updated January 2016