Petalonema alatum (Borz ex Bornet & Flahault) Correns, 1889 Dataset TAXREF Rank SPECIES Classification kingdom Bacteria phylum Cyanobacteria class Cyanophyceae order Nostocales family Scytonemataceae genus Petalonema species Petalonema alatum Name Synonyms Scytonema alatum Borz ex Bornet & Flahault, 1886 Homonyms Petalonema alatum (Borz ex Bornet & Flahault) Correns, 1889