Macromitrium dubium Schimp. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Bryophyta class Bryopsida order Orthotrichales family Orthotrichaceae genus Macromitrium species Macromitrium dubium Name Homonyms Macromitrium dubium Schimp. Macromitrium dubium Schimp. ex Müll.Hal.