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Images of British Lichens


Schaereria fuscocinerea (Nyl.) Clauzade & Cl.Roux


Thallus crustose, of milky-coffee to grey- or dark-brown areoles set on a black prothallus; apothecia black, irregular in shape, lacking thalline margins, initially small and set within the areoles (compare Clauzadeana macula and Acarospora spp.). On hard, sunny, exposed, base-poor rocks in the north and west.

Refs: Smith et al. (2009), 834; Purvis et al. (1992), 558; Dobson (2005), 402 (photo); Dobson (2011), 407 (photo); Wirth (1995), 2: 849 (photo); Moberg & Holmåson (1984), 125 (photo, as Lecidea tenebrosa); Puntillo (1996), plate 36 (photo); Brodo et al. (2001), 651 (photo); Thomson (1997), 583 (as S. tenebrosa).

 
Schaereria fuscocinerea, distance view on boulder, with Rhizocarpon geographicum
Schaereria fuscocinerea, with Rhizocarpon geographicum on quartzite boulder, Braemar, Aberdeenshire, April 2002
 
Schaereria fuscocinerea
Braemar, Aberdeenshire, March 2008


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© A.J. Silverside
Uploaded August 2008, last updated November 2011 (first hosted at www-biol.paisley.ac.uk, January 2003)