Synechocystis nigrescens Dataset NCBI Taxonomy Rank SPECIES Classification phylum Cyanobacteriota class Cyanophyceae order Synechococcales family Merismopediaceae genus Synechocystis species Synechocystis nigrescens Name Synonyms Synechocystis nigrescens, nom. inval. Homonyms Synechocystis nigrescens Synechocystis nigrescens, nom. inval.