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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, 2013), 80-1 (photo); Aptroot et al. (2011), 40-1 (photos); Moberg & Holmåson (1984), 135 (photo); Holien & Tønsberg (2008), 192 (photo); Stenroos et al. (2011), 65 (photo); Wirth (1995), 1: 173 (photo); Wirth et al. (2004), 178 (photo); Wirth, Hauck & Schulz (2013), 1: 217 (photo), 218; Puntillo (1996), plate 6 (photo); Valcárcel et al. (2003), 130-1 (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.

FGBI: http://fungi.myspecies.info/all-fungi/baeomyces-rufus

 
Baeomyces rufus
Baeomyces rufus
On dry-stone wall, Balmaha, Stirlingshire, November 2008
 
Baeomyces rufus
Baeomyces rufus
Baeomyces rufus on boulder
On forest boulder, Aberfoyle, Stirlingshire, March 2009
 
Baeomyces rufus, thallus patches on soil bank
On soil on sea-cliff, St. Agnes Head, Cornwall, August 2008
 
Baeomyces rufus, close view
From heathy roadbank, Moulin, Perthshire, April 2008


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Uploaded April 2009, last updated January 2016