Astrella ludwigii (Schwägr.) Underw. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Marchantiophyta class Marchantiopsida order Marchantiales family Aytoniaceae genus Mannia species Mannia triandra Name Homonyms Astrella ludwigii (Schwägr.) Underw. Astrella ludwigii (Schwägr.) Underw. ex A.Evans