Bryum hyperboreum Gunnerus Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Bryophyta class Bryopsida order Dicranales family Rhabdoweisiaceae genus Arctoa species Arctoa hyperborea Name Homonyms Bryum hyperboreum Gunnerus ex With. Bryum hyperboreum Gunnerus Bryum hyperboreum Gunnerus ex Dicks. Bryum hyperboreum Bryhn & Ryan