Images of British Lichens
Ramalina siliquosa (Huds.) A.L.Sm.
Thallus fruticose, tufted, erect to pendant, branches flat, strap-like or curved and pointed, often irregular, ivory to greenish-grey, soralia absent; apothecia frequent, laminar or marginal, sometimes many small, immature apothecia and pale pycnidia scattered over the branch surfaces; grazing by molluscs may reduce thalli back to the crustose-like holdfasts (see lowest photograph and Dalby & Dalby). Generally abundant on exposed, hard coastal rocks (often in company with R. cuspidata), rare only in the south east where there is little available habitat, also as a rarity inland.
Refs: Smith et al. (2009), 787; Purvis et al. (1992), 528; Dobson (2005), 384 (photo); Dobson (2011), 387-8 (photo); Jahns (1983), 230-231 (photo); Allen (2007), 17 (photo, habitat); Dalby & Dalby (2005), 25 (illustration), 42 (photo, grazed thalli); Whelan (2011), 139 (photo); van Herk & Aptroot (2004), 336-7 (photo); Valcárcel et al. (2003), 334-5 (photo); Wirth et al. (2004), 45 (photo); Wirth, Hauck & Schulz (2013), 2: 971, 972 (photo); Moberg & Holmåson (1984), 163 (photo); Stenroos et al. (2011), 404 (photo).
|Rather gross (mite affected?) material on island in freshwater loch, South Uist, Outer Hebrides, July 2006|
|Sea-cliffs, Bettyhill, Sutherland, August 2006|
|On coastal rocks, Kennedy's Pass, Ayrshire, May 2008|
|On coastal rocks, grazed by marine molluscs, Girvan, Ayrshire, May 2008|
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Uploaded July 2008, last updated September 2013