Callicostella pusilla Broth. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Bryophyta class Bryopsida order Hookeriales family Pilotrichaceae genus Callicostella species Callicostella pusilla Name Homonyms Callicostella pusilla Broth. ex Demaret & P.de la Varde Callicostella pusilla Broth.