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Images of British Lichens
Caloplaca cirrochroa (Ach.) Th.Fr.
Thallus a placodioid crust, with narrow, radiating, finger-like lobules, markedly bicoloured, dull orange with lobule tips pale yellow-pruinose, delimited lemon-yellow soralia developing on the lobule surfaces; apothecia orange, rare. Widespread but local on natural outcrops of hard limestones, distribution somewhat western but as determined by substrate availability.
Refs: Gaya (2009), 122, 189 (photo); Smith et al. (2009), 258; Purvis et al. (1992), 149; Dobson (2005), 99-9 (photo); Dobson (2011), 108 (photo); Jahns (1983), 246-247 (photo, poor); Wirth (1995), 1: 216 (photo); Thomson (1997), 155; Lichen Atlas of the British Isles 6: 246 (2001). |
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| On limestone in sheltered, coastal gulley, Stackpole, Pembrokeshire, May 2009 |
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Uploaded July 2009, last updated November 2011
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