Taxon inquirendum (Furnari, pers. comm.). Some authors (e.g. South & Tittley 1986: 30) have treared it as a synonym of Laminaria digitata, whilst others (e.g. Rueness 1977: 170) treat it as a separate entity. See Athanasiadis (1996: 214) for further references.
Type locality: Spitsbergen (Athanasiadis 1996: 214). Lectotype: LD [herb. alg. Agardh] 2013 (Longtin & Saunders 2015: 445). Notes: Lontin & Saunders (2014: 445) rejected the selection of LD [herb alg. Agardh] 2010 by Wilce and replaced it with LD [herb alg. Agardh] 2013. Art 9.19 [Melbourne Code] clearly specifies "The author who first designates (Art. 7.9 and 7.10) a lectotype or a neotype in conformity with Art. 9.11-13 must be followed, but that choice is superseded if (a) the holotype or, in the case of a neotype, any of the original material is rediscovered; the choice may also be superseded if one can show that (b) it is in serious conflict with the protologue and another element is available that is not in conflict with the protologue, or that (c) it is contrary to Art. 9.14."
Arctic: Canada (Arctic) (Taylor 1957, Lee 1980).
Europe: Scandinavia (Athanasiadis 1996), Spitsbergen (Vinogradova 1995).
Atlantic Islands: E. Greenland (Pedersen 1976), Greenland (Pedersen 2011), Iceland (Caram & Jónsson 1972).
North America: Labrador (Taylor 1957), Québec (Taylor 1957).
Rueness, J. (1977). Norsk Algeflora. pp. [i-vi], 1-265 . Oslo, Bergem Tromsø: Scandinavian University Books/Universitetsforlaget.
South, G.R. & Tittley, I. (1986). A checklist and distributional index of the benthic marine algae of the North Atlantic Ocean. pp. 76. London and St. Andrews, New Brunswick, Canada: British Museum (Natural History) and Huntsman Marine Laboratory.
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