Calliergon giganteum f. hystricosum (G.Roth & Bock) Podp. Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Bryophyta class Bryopsida order Hypnales family Calliergonaceae genus Calliergon species Calliergon giganteum Name Homonyms Calliergon giganteum var. hystricosum G.Roth & Bock Calliergon giganteum f. hystricosum (G.Roth & Bock) Podp.