Dolichospermum sigmoideum Dataset NCBI Taxonomy Rank SPECIES Classification phylum Cyanobacteriota class Cyanophyceae order Nostocales family Aphanizomenonaceae genus Dolichospermum species Dolichospermum sigmoideum Name Synonyms Anabaena sigmoidea Anabaena sigmoidea Nygaard, 1950 Dolichospermum sigmoideum (Nygaard) Wacklin, Hoffmann et Komarek 2009 Homonyms Dolichospermum sigmoideum Dolichospermum sigmoideum (Nygaard) Wacklin, Hoffmann et Komarek 2009