| Physematium | |
|---|---|
![]()  | |
| Physematium oreganum | |
| Scientific classification  | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Division: | Polypodiophyta | 
| Class: | Polypodiopsida | 
| Order: | Polypodiales | 
| Suborder: | Aspleniineae | 
| Family: | Woodsiaceae | 
| Genus: | Physematium Kaulf.  | 
| Species | |
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]
Species
As of June 2023, World Ferns accepted 20 species and two hybrids:[3]
- Physematium fragile (Trevis.) Kunze
 - Physematium indusiosum (Christ) Li Bing Zhang, N.T.Lu & X.F.Gao
 - Physematium kangdingense (H.S.Kung, Li Bing Zhang & X.S.Guo) Li Bing Zhang, N.T.Lu & X.F.Gao
 - Physematium × kansanum (R.E.Brooks) Li Bing Zhang, N.T.Lu & X.F.Gao
 - Physematium manchuriense (Hook.) Nakai
 - Physematium × maxonii (R.M.Tryon) Li Bing Zhang, N.T.Lu & X.F.Gao
 - Physematium mexicanum (Fée) comb.ined.
 - Physematium molle Kaulf.
 - Physematium montevidense (Spreng.) Shmakov
 - Physematium neomexicanum (Windham) Li Bing Zhang, N.T.Lu & X.F.Gao
 - Physematium obtusum (Spreng.) Hook.
 - Physematium oreganum (D.C.Eaton) Trevis.
 - Physematium phillipsii (Windham) Li Bing Zhang, N.T.Lu & X.F.Gao
 - Physematium plummerae (Lemmon) Li Bing Zhang, N.T.Lu & X.F.Gao
 - Physematium pubescens (Spreng.) Bevis
 - Physematium scopulinum Trevis.
 
References
- ↑  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) - ↑ "Physematium Kaulf.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2023-06-13
 - ↑ Hassler, Michael, "Physematium", World Ferns, retrieved 2023-06-13
 
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