Cosmarium curcurbita f. maior West, 1892 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Charophyta class Zygnematophyceae order Zygnematales family Desmidiaceae genus Actinotaenium species Actinotaenium cucurbita Name Homonyms Cosmarium curcurbita f. maior West, 1892