Physematium is a genus of ferns in the family Woodsiaceae. It was treated as a synonym of Woodsia until 2020 when a molecular phylogenetic study showed its distinctiveness.[1] As of June 2023, Plants of the World Online continued to treat the genus as a synonym of Woodsia.[2]

Physematium
Physematium oreganum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Suborder: Aspleniineae
Family: Woodsiaceae
Genus: Physematium
Kaulf.
Species

See text.

Species

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As of June 2023, World Ferns accepted 20 species and two hybrids:[3]

References

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  1. ^ Lu, N.T.; Zhou, X.-M.; Zhang, L.; Knapp, R.; Li, C.-X.; Fan, X.-P.; Zhou, L.; Wei, H.-J.; Lu, J.-M., Xu, B.; Peng, Y.-L.; Gao, X.-F. & Zhang, L.-B. (2020), "A global plastid phylogeny of the cliff fern family Woodsiaceae and a two-genus classification of Woodsiaceae with the description of ×Woodsimatium nothogen. nov.", Taxon, 68 (6): 1149–1172, doi:10.1002/tax.12180, S2CID 213706008{{citation}}: CS1 maint: multiple names: authors list (link)
  2. ^ "Physematium Kaulf.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2023-06-13
  3. ^ Hassler, Michael, "Physematium", World Ferns, retrieved 2023-06-13