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Images of British Lichens



Megalaria pulverea (Borrer) Hafellner & E.Schreiner


Thallus thin, effuse, lacking a distinct cortex, whitish-grey, surface with granular yellow- to grey- or blue-green soredia that eventually form a crust over the thallus surface; apothecia rare, black, lecideine. On damp, acid bark, overgrowing associated mosses, in old, sheltered woodland, more rarely on soil near the coast, in the north and west.

Refs: Smith et al. (2009), 567; Purvis et al. (1992), 171 (as Catillaria pulverea); Dobson (2005), 259 (photo); Dobson (2011), 265 (photo); Holien & Tønsberg (2008), 171 (photo); Arup et al. (1997), 188 (photo); Thor & Arvidsson (1999), 285 (photo).

Megalaria pulverea
Megalaria pulverea, close up
On peaty soil and moss on coastal, vertical, bank, Mull of Oa, Islay, May 2011, (BLS meeting)


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Uploaded August 2013