Drynarioideae

Drynarioideae is a subfamily of the fern family Polypodiaceae in the Pteridophyte Phylogeny Group classification of 2016 (PPG I).[1] The subfamily is also treated as the tribe Drynarieae within a very broadly defined family Polypodiaceae sensu lato.[2] In either case, it includes the previously separated tribe Selligueeae.

Drynarioideae
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Class: Polypodiopsida
Order: Polypodiales
Suborder: Polypodiineae
Family: Polypodiaceae
Subfamily: Drynarioideae
Crabbe, Jermy & Mickel 1975
Genera

See text.

Drynarioideae combines the drynarioid and selligueoid ferns,[3] which have been considered to be tribes (Drynarieae and Selligueeae) when the family Polypodiaceae was very broadly circumscribed. The genus count of neither of original tribes was certain, but the combined total could be at least nine.[3] The Pteridophyte Phylogeny Group classification of 2016 (PPG I) recognizes six genera.[1] Other sources accept fewer. As of February 2020, the Checklist of Ferns and Lycophytes of the World (CFLW) sank Arthromeris, Paraselliguea and Polypodiopteris into a more broadly circumscribed Selliguea.[4] Plants of the World Online in addition placed the sole species of Gymnogrammitis in Selliguea,[5] and recognized Drynaria rather than Aglaomorpha.[6] The table below summarizes these approaches.

Alternative divisions as of February 2020
PPG ICFLW version 8.20Plants of the World Online
Aglaomorpha Schott,
including Drynaria J.Sm.		AglaomorphaDrynaria
Gymnogrammitis Griff.GymnogrammitisSelliguea
Arthromeris (T.Moore) J.Sm.Selliguea
Paraselliguea Hovenkamp
Polypodiopteris C.F.Reed
Selliguea Bory

References
  1. PPG I (2016). "A community-derived classification for extant lycophytes and ferns". Journal of Systematics and Evolution. 54 (6): 563–603. doi:10.1111/jse.12229. S2CID 39980610.
  2. Christenhusz, Maarten J.M. & Chase, Mark W. (2014). "Trends and concepts in fern classification". Annals of Botany. 113 (9): 571–594. doi:10.1093/aob/mct299. PMC 3936591. PMID 24532607.CS1 maint: ref=harv (link)
  3. Christenhusz et al.: A linear sequence of extant families and genera of lycophytes and ferns Phytotaxa 19: 7-54. (18 Feb. 2011)
  4. Hassler, Michael & Schmitt, Bernd (January 2020). Checklist of Ferns and Lycophytes of the World. 8.20. Retrieved 2020-02-08.
  5. "Gymnogrammitis dareiformis (Hook.) Ching ex Tardieu & C.Chr". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2020-02-08.
  6. "Aglaomorpha Schott". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2020-02-08.


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