MAREŠ, Jan, Jeffrey R. JOHANSEN, Tomás HAUER, Jan ZIMA JR., Stefano VENTURA, Oana CUZMAN, Bruno TIRIBILLI, & Jan KAŠTOVSKÝ 2019 (Mar. 4) Taxonomic resolution of the genus Cyanothece (Chroococcales, Cyanobacteria), with a treatment on Gloeothece and three new genera, Crocosphaera, Rippkaea, and Zehria Journal of Phycology 55(3): 578-610, 13 figs., 3 tables