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).
|On an apparently iron-rich, damp, montane rockface, Braemar, Aberdeenshire, March 2008|
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Uploaded November 2008, last modified November 2011