Kingdom: Plantae
Division: Pteridophyta (Filicophyta)
Class: Pteridopsida (Filicopsida)
Subclass: Pteriditae
Order: Dennstaedtiales
Chromosome counts in this family are probably derived from multiples of x=12, whereas the counts of the Hypolepidaceae appear to be derived from x-13.
Genera of Dennstaedtiaceae (list not complete: