Hypnum cordifolium f. heteropterum (Hartm.) T.Jensen Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Bryophyta class Bryopsida order Hypnales family Calliergonaceae genus Calliergon species Calliergon cordifolium Name Homonyms Hypnum cordifolium var. heteropterum Hartm. Hypnum cordifolium f. heteropterum (Hartm.) T.Jensen