Images of British Lichens
Baeomyces rufus (Huds.) Rebent.
Thallus of minute, whitish-green to green, cushion-shaped granules, often individually tinged pink, forming a thin crust, with dark lines between adjacent thalli; apothecia stalked, stalks white, discs convex, often saddle-shaped, pink-brown to brown. Widespread and, in the north and west, often common, on soil and peat banks, damp tracks, sheltered boulders and in crevices in dry-stone walls.
Refs: Smith et al. (2009), 210; Purvis et al. (1992), 116; Dobson (2005), 83 (photo); Dobson (2011), 89 (photo); Jahns (1983), 210-211 (photo); van Herk & Aptroot (2004), 80-81 (photo); Moberg & Holmåson (1984), 135 (photo); Holien & Tønsberg (2008), 192 (photo); Wirth (1995), 1: 173 (photo); Wirth et al. (2004), 178 (photo); Puntillo (1996), plate 6 (photo); Hansen & Anderson (1995), 79 (photo, dried material); Brodo et al. (2001), 174-5 (photo); Walewski (2007), 24 (photo); McCune & Geiser (2009), 29 (photo).
B. rufus can be confused with variants of Icmadophila ericetorum with stalked apothecia, or with Dibaeis baeomyces, which has pink, ± globose apothecia; also easily mistaken for a Trapeliopsis species when barren.
|On dry-stone wall, Balmaha, Stirlingshire, November 2008|
|On forest boulder, Aberfoyle, Stirlingshire, March 2009|
|On soil on sea-cliff, St. Agnes Head, Cornwall, August 2008|
|From heathy roadbank, Moulin, Perthshire, April 2008|
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Uploaded April 2009, last updated December 2011