Spyridia filamentosa is a common red alga (Ceramiales, Rhodophyta) species found in most intertidal marine waters of the tropics and warm temperate areas around the world; in some locations it makes up the majority of algal biomass. It is found in diverse forms, and recently been recognized as a “cryptic” species, indicating that it is genetically variable and composed of at least two distinct lineages which may in fact be a complex of several species (Zuccarello et al. 2002; Conklin and Sherwood 2012; Guiry 2014). Because it has a highly branched morphology, some forms of S. filamentosa are highly effective at trapping sediments, which is beneficial in encouraging sea grass establishment, and has been used for this purpose to restore sea grass beds in the Hawaiian archipelago (Conklin and Sherwood 2012).
- Conklin K.Y. and Sherwood A.R. 2012. Molecular and morphological variation of the red alga Spyridia filamentosa (Ceramiales, Rhodophyta) in the Hawaiian Archipelago. Phycologia 51: 347–357. DOI: 10.2216/10-26.1
- Guiry, W. in Guiry, M.D. & Guiry, G.M. 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 06 January 2014.
- Zuccarello G.C., Sandercock B. & West J.A. 2002. Diversity within red algal species: variations in world-wide samples of Spyridia filamentosa (Ceramiaceae) and Murrayella periclados (Rhodomelaceae) using DNA markers and breeding studies. European Journal of Phycology 37: 403–417.