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Images of British Lichens



Trapeliopsis granulosa (Hoffm.) Lumbsch


Thallus a thin, effuse, granular crust, pale grey to greenish grey, sometimes with pinkish areas, reacting red with sodium hypochlorite (bleach), soralia pale yellowish-green, becoming coalescent; apothecia variable in colour, pinkish brown to green-grey or blackish. Widespread, common on heaths and moors, on damp, peaty banks, rotted tree stumps and similar substrata.

Refs: Coppins & James (1984); Smith et al. (2009), 909; Purvis et al. (1992), 613; Dobson (2005), 432; Dobson (2011), 439 (photo); van Herk & Aptroot (2004, 2013), 368-9 (photo); Wirth (1995), 2: 918; Wirth, Hauck & Schulz (2013), 2: 1111, 1114 (photo); Moberg & Holmåson (1984), 122 (photo, as Lecidea granulosa); Holien & Tønsberg (2008), 190 (photo); Stenroos et al. (2011), 451 (photo); Brodo et al. (2001), 687 (photo); Thomson (1997), 622-3 (photo); Walewski (2007), 27 (photo).

 
Trapeliopsis granulosa
Braemar, Aberdeenshire, March 2008


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Uploaded February 2009, last updated December 2013