Micrasterias pinnatifida var. tridentata Willi Krieg., 1939 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Micrasterias species Micrasterias pinnatifida Name Synonyms Micrasterias pinnatifida f. tridentata (Willi Krieger) H.Croasdale, 1977 Homonyms Micrasterias pinnatifida var. tridentata Willi Krieg., 1939 Micrasterias pinnatifida f. tridentata (Willi Krieger) H.Croasdale, 1977