Staurodesmus incus var. jaculiferus (West) Coesel & Meesters Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurodesmus species Staurodesmus incus Name Synonyms Arthrodesmus longicornis J.Roy Arthrodesmus longicornis J.Roy ex West, 1892 Homonyms Staurodesmus incus var. jaculiferus (West) Coesel & Meesters