Battersia arctica is a species of algae belonging to the family Sphacelariaceae. In Iceland, it is listed as a critically endangered species (CR).Náttúrufræðistofnun Íslands [Icelandic Institute of Natural History] (1996). Válisti 1: Plöntur. (in Icelandic) Reykjavík: Náttúrufræðistofnun Íslands.
Synonym: Sphacelaria arctica Harvey, 1858
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