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Gwylan: Rhodothamniella floridula. Clymwr Tywod. Sand Binder.
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Gwylan: clymwr tywod - Rhodothamniella floridula
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Gwylan: Palmaria palmata. Delysg. Dulse. Dillisk.
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Gwylan: lafwr - Porphyra umbilicalis
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Gwylan: lafwr - Porphyra sp. Porphyra dioica?
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Gwylan: Gwymon gwaedfaen - Hildenbrandia rubra
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Gwylan: Corallina officinalis - gwymon cwrel
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Gwylan: Lithothamnion sp. - llabedau lelog
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Gwylan: Calliblepharis ciliata
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Gwylan: Gwymon hagr, Leathesia difformis
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Gwylan: Carrai fôr - Chorda filum
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Gwylan: Môr-wiail crych - Laminaria saccharina
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Gwylan: Pleth y môr - Saccorhiza polyschides
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Gwylan: Gwymon codau pys - Halidrys siliquosa
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Gwylan: Pleth y môr - Saccorhiza polyschides
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Gwylan: Gwymon y paen - Padina pavonica
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Gwylan: Polysiphonia lanosa
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Gwylan: Gwymon melys - Chondrus crispus
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Gwylan: Dumontia contorta
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Gwylan: Gwymon codog bras - Ascophyllum nodosum
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Gwylan: Gwymon danheddog - Fucus serratus
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Gwylan: Gwymon danheddog - Fucus serratus
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Gwylan: Gwymon rhychog - Pelvetia canaliculata
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Gwylan: Gwymon codog mân - Fucus vesiculosus
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Gwylan: Himanthalia elongata. Gwymon Lledr. Thongweed.
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Gwylan: Gwymon perfedd gwyrdd - Ulva intestinalis
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Gwylan: Gwymon perfedd gwyrdd - Ulva intestinalis
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Gwylan: Gwymon lein ddillad - Sargassum muticum - Caernarfon
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Gwylan: Gwymon lein ddillad - Sargassum muticum - Dinas Dinlle, Caernarfon
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Gwylan: gwymon cwrel - Corallina officinalis