Rhizosolenia alata subsp. genuina Gran Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Rhizosoleniales family Rhizosoleniaceae genus Proboscia species Proboscia alata Name Homonyms Rhizosolenia alata f. genuina Gran, 1908 Rhizosolenia alata subsp. genuina Gran