Polypodiopteris

Polypodiopteris is a genus of ferns in the family Polypodiaceae, subfamily Drynarioideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I).[1]

Polypodiopteris
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Class: Polypodiopsida
Order: Polypodiales
Suborder: Polypodiineae
Family: Polypodiaceae
Subfamily: Drynarioideae
Genus: Polypodiopteris
C.F.Reed[1]
Species

See text.

Synonyms[2]

    Taxonomy

    Polypodiopteris was first described by C.F. Reed in 1948.[1]

    Species

    In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the genus has three species. As of February 2020, the Checklist of Ferns and Lycophytes of the World placed all three in a more broadly circumscribed genus Selliguea:[2]

    • Polypodiopteris brachypodia (Copel.) C.F.Reed
    • Polypodiopsis colorata (Copel.) Copel.
    • Polypodiopsis proavita (Copel.) Copel.

    As of February 2020, Plants of the World Online also sank the genus into Selliguea.[3]

    gollark: If this is like our proof, which it seems to be.
    gollark: I believe the issue is that you can't determine which of the reals are actually computable with a non-infinite algorithm.
    gollark: Obviously "computable" exists elsewhere.
    gollark: "Computable numbers", I mean.
    gollark: Is "computable" a thing you made up? Because it sounds as if it might suffer similar issues to in our proof, which uses "finitely describable" similarly.

    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
    2. Hassler, Michael & Schmitt, Bernd (January 2020), "Polypodiopteris", Checklist of Ferns and Lycophytes of the World, Version 8.20, retrieved 2020-02-08
    3. "Polypodiopteris C.F.Reed", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2020-02-08


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