Staurodesmus joshuae subsp. trispinosus Teiling, 1948 Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurodesmus species Staurodesmus cuspidatus Name Homonyms Staurodesmus joshuae subsp. trispinosus Teiling, 1948