Martensia albida is a species of red algae, first described in 2006 by Lee Yong-Pil.Guiry, M.D. & Guiry, G.M. 2012. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 31 October 2012
This alga grows on rocks in the subtidal zone at depths of 5 to 8 m. It appears white in the water and is fluorescescent. It is endemic to South Korea and is found on Jeju Island.
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