Penicillus pyriformis f. explanatus Børgesen, 1913 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Chlorophyta class Ulvophyceae order Bryopsidales family Udoteaceae genus Penicillus species Penicillus pyriformis Name Homonyms Penicillus pyriformis f. explanatus Børgesen, 1913