Orthotrichum callistomum Fleisch., 1850 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Bryophyta class Bryopsida order Orthotrichales family Orthotrichaceae genus Orthotrichum species Orthotrichum callistomum Name Homonyms Orthotrichum callistomum Fisch.-Oost. ex Bruch & Schimp. Orthotrichum callistomum Fisch.-Oost. Orthotrichum callistomum Fleisch., 1850