Fissidens viridulus var. tenuifolius (Boulay) A.J.E.Sm. Dataset Rank VARIETY Classification kingdom Plantae phylum Bryophyta class Bryopsida order Dicranales family Fissidentaceae genus Fissidens species Fissidens gracilifolius Name Homonyms Fissidens viridulus var. tenuifolius (Boulay) A.J.E.Sm. Fissidens viridulus subsp. tenuifolius A.J.E.Sm.