Melosira granulata f. spiralis Mull. Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Melosirales family Melosiraceae genus Melosira species Melosira granulata Name Homonyms Melosira granulata f. spiralis O.Müll. Melosira granulata f. spiralis Hustedt, 1927 Melosira granulata f. spiralis Grunow Melosira granulata var. spiralis (Ehrenberg & Ehrenberg) Grunow, 1882