rhodophycean
/ˌrəʊdə(ʊ)ˈfʌɪsɪən/Botany
adjective
Of or relating to the Rhodophyceae or red algae, a class of mostly marine algae (division Rhodophyta) which are characterized by their red colour, any chlorophyll being masked by the pigment phycoerythrin.
Origin
Late 19th century; earliest use found in Quarterly Journal of Microscopical Science. From scientific Latin Rhodophyceae, class name + -an.