organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Kingdom Protoctista Hogg, 1860 Phylum Rhodophyta Wettst. (1901) - red algae Genus Polysiphonia Grev. (1823) Polysiphonia harveyi J. Bailey