↑Guiry, M.D., John, D.M., Rindi, F and McCarthy, T.K. (ed.) 2007. New Survey of Clare Island Volume: The Freshwater and Terrestrial Algae. Royal Irish Academy. ISBN978-1-904890-31-7.
↑Burrows, E.M. 1991. Seaweeds of the British Isles Volume 2: Chlorophyta. Natural History Museum, London ISBN0-565-00981-8.