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Images of British Lichens



Rhizocarpon ridescens (Nyl.) Zahlbr.


Thallus of discrete but clustered, high-domed, yellow areoles, sorediate; apothecia rare, not seen in Britain? Recently found in company with other metalliferous species on a single, siliceous rock-face in the Scottish Highlands. It is to be hoped that evident collection of this distinctive, non-critical species will not continue at this site.

Refs: Smith et al. (2009), 805; Wirth (1995), 2: 804, 817 (photo); Wirth, Hauck & Schulz (2013), 2: 983, 996 (photo); .

 
Rhizocarpon ridescens
Rhizocarpon ridescens
Rhizocarpon ridescens
Rhizocarpon ridescens
On an apparently iron-rich, damp, montane rockface, Braemar, Aberdeenshire, March 2008


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© A.J. Silverside
Uploaded November 2008, last updated September 2013