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Gwylan: Cen llygadog - Ochrolechia parella
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Gwylan: Barfau llwydion - Ramalina siliquosa
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Gwylan: Cen smotiau duon - Tephromela atra
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Gwylan: Ramalina siliquosa. Barfau Llwydion. Sea Ivory.
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Gwylan: Cen du y môr - Lichina pygmaea Lichinia confinis?
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Gwylan: Lichina pygmaea. Cen Du y Môr. Black Lichen.
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Gwylan: Ramalina siliquosa. Barfau Llwydion. Sea Ivory.
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Gwylan: Xanthoria parietina
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Gwylan: Maritime lichens. Xanthoria parietina
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Gwylan: Roccella fuciformis. Cen arforol. Maritime lichen.
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Gwylan: Ramalina siliquosa, or perhaps Ramalina cuspidata. Barfau llwydion. Sea ivory
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Gwylan: Lichina pygmaea. Cen Du y Mor. Black Lichen. Marine Lichen.
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Gwylan: Lichina pygmaea. Cen Du y Mór. Black Lichen.
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Gwylan: Verrucaria maura. Black tar lichen.
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Gwylan: Cen arforol. Maritime lichens Xanthoria; Verrucaria.
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Gwylan: Ramalina siliquosa. Barfau llwydion. Sea Ivory
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Gwylan: Cen arforol. Maritme lichens.
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Gwylan: Anaptychia runcinata. Cen. Lichen.
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Gwylan: Hoel gwichiaid. Snail Trail. The tracks of Littorinidae on Verrucaria.
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Gwylan: Rhizocarpon geographicum. Cen Caeau Gleision. Map Lichen.
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Gwylan: Verrucaria mucosa. Cen. Lichen. Intertidal.
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Gwylan: Verrucaria mucosa. Cen. Intertidal Lichen.
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Gwylan: Verrucaria sp. Verrucaria ditmarsica? and Verrucaria mucosa? Intertidal Lichens.
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Gwylan: Caloplaca sp. Caloplaca maritima? Cen. Lichen.
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Gwylan: Xanthoria parietina. Cen. Lichen.
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Gwylan: Lecanora spp. Cen. Lichen.
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Gwylan: Lecanora fugiens. Cen Arforol. A Coastal Lichen.
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Gwylan: Caloplaca sp. Caloplaca maritima? Cen. Lichen.
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Gwylan: Roccella fuciformis. Cen arforol. Maritime lichen.
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Gwylan: Xanthoria parietina