Guiry, Michael D. (2015). Pterothamnion floccosum (O.F.Müller) Nägeli, 1862. In: Guiry, M.D. & Guiry, G.M. (2017). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Accessed through: World Register of Marine Species at http://marinespecies.org/aphia.php?p=taxdetails&id=497295 on 2017-12-11
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