''Pteridoideae'' is one of the five subfamilies of the

fern A fern (Polypodiopsida or Polypodiophyta ) is a member of a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. The polypodiophytes include all living pteridophytes except t ...

family

Pteridaceae Pteridaceae is a family of ferns in the order Polypodiales, including some 1150 known species in ca 45 genera (depending on taxonomic opinions), divided over five subfamilies. The family includes four groups of genera that are sometimes recogni ...

. This subfamily contains about 14 genera and around 400 species.

Taxonomy

Phylogeny

The following diagram shows a likely phylogenic relationship between Pteridoideae and the other the Pteridaceae subfamilies. The cladogram below shows one hypothesis for the evolutionary relationships among the genera of the Pteridoideae, based on a maximum likelihood analysis using six

plastid The plastid (Greek: πλαστός; plastós: formed, molded – plural plastids) is a membrane-bound organelle found in the Cell (biology), cells of plants, algae, and some other eukaryotic organisms. They are considered to be intracellular endosy ...

markers. The authors of the study identified four major clades. The ''Pteris'' and JAPSTT clades are found worldwide; the GAPCC clade is pantropical; and the ''Actiniopteris''+''Onychium'' clade is restricted to the

Old World The "Old World" is a term for Afro-Eurasia that originated in Europe , after Europeans became aware of the existence of the Americas. It is used to contrast the continents of Africa, Europe, and Asia, which were previously thought of by the ...

Genera

The

Pteridophyte Phylogeny Group The Pteridophyte Phylogeny Group, or PPG, is an informal international group of systematic botanists who collaborate to establish a consensus on the classification of pteridophytes (lycophytes and ferns) that reflects knowledge about plant relation ...

classification of 2016 (PPG I) recognized 13 genera. Shortly afterwards, the genus ''Gastoniella'' was created for three species formerly placed in ''Anogramma'' which a

molecular phylogenetic Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...

analysis had shown to be distinct. *'' Actiniopteris'' Link *'' Anogramma'' Link *'' Austrogramme'' E.Fourn. *''

Cerosora ''Cerosora'' is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae. Species , ''Plants of the World Online'' and the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *'' Cerosora argente ...

'' Domin *'' Cosentinia'' Tod. *'' Gastoniella'' Li Bing Zhang & Liang Zhang *''

Jamesonia ''Jamesonia'' is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae. It now includes the formerly separate genus ''Eriosorus''. Description Species of ''Jamesonia'' are terrestrial or grow on rocks. They vary considerably ...

'' Hook. & Grev. *'' Onychium'' Kaulf. *''

Pityrogramma ''Pityrogramma'', the silverback ferns, or goldback ferns, is a fern genus in the subfamily Pteridoideae of the family Pteridaceae Pteridaceae is a family of ferns in the order Polypodiales, including some 1150 known species in ca 45 genera ...

'' Link *''

Pteris ''Pteris'' (brake) is a genus of about 300 species of ferns in the subfamily Pteridoideae of the family Pteridaceae. They are native to tropical and subtropical regions, southward to New Zealand, Australia, and South Africa, north to Japan an ...

'' L. *'' Pterozonium'' Fée *'' Syngramma'' J.Sm. *'' Taenitis'' Willd. ex Schkuhr *'' Tryonia'' Schuettp.

References

{{Taxonbar, from=Q9064103 Pteridaceae Plant subfamilies