Woodsia

This article is about the genus of plants. For the genus of fish, see Woodsia (fish).

Woodsia is a genus of ferns in the family Woodsiaceae. Species of Woodsia are commonly known as cliff ferns.^[4]: 224 In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it was the only genus in the family Woodsiaceae.^[2] In 2020, Physematium was split off from Woodsia on the basis of molecular phylogenetic evidence.^[5] As of June 2023^[update], Plants of the World Online continued to treat Physematium as a synonym of Woodsia.^[6]

Woodsia
Woodsia alpina[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Polypodiales
Suborder:	Aspleniineae
Family:	Woodsiaceae Herter[2]
Genus:	Woodsia R.Br.[2][3]

Species

There are about 25–30 species of the genus Woodsia. As of June 2023^[update], World Ferns hosted at World Plants accepted the following species:^[7]

• Woodsia alpina (Bolton) Gray – alpine woodsia
• Woodsia andersonii (Bedd.) Christ
• Woodsia asiatica Kiselev & Shmakov
• Woodsia calcarea (Fomin) Shmakov
• Woodsia cinnamomea Christ
• Woodsia cycloloba Hand.-Mazz.
• Woodsia glabella R.Br. – smooth cliff fern
• Woodsia gorovoii Krestsch. & Shmakov
• Woodsia guizhouensis P.S.Wang, Q.Luo & Li Bing Zhang
• Woodsia hancockii Baker
• Woodsia ilvensis (L.) R.Br. – oblong woodsia, rusty cliff fern
• Woodsia kungiana Li Bing Zhang, N.T.Lu & X.F.Gao
• Woodsia lanosa Hook.
• Woodsia macrochlaena Mett. ex Kuhn
• Woodsia macrospora C.Chr. & Maxon
• Woodsia nikkoensis H.Ogura & Nakaike
• Woodsia oblonga Ching & S.H.Wu
• Woodsia okamotoi Tagawa
• Woodsia pilosa Ching
• Woodsia polystichoides D.C.Eaton
• Woodsia pseudopolystichoides (Fomin) Kiselev & Shmakov
• Woodsia pulchella Bertol.
• Woodsia rosthorniana Diels
• Woodsia shensiensis Ching
• Woodsia sinica Ching
• Woodsia subcordata Turcz.
• Woodsia taigischensis (Stepanov) Kuznetsov
• Woodsia taishanensis F.Z.Li & C.K.Ni

Some hybrids are also known:^[7]

• Woodsia × gracilis (G.Lawson) Butters = W. alpina × W. ilvensis
• Woodsia × tryonis B.Boivin = W. ilvensis × W. glabella

When the genus Physematium is accepted, × Woodsimatium abbeae is a hybrid between Woodsia ilvensis and Physematium scopulinum.^[8]

References

1. illustration from Prof. Dr. Otto Wilhelm Thomé Flora von Deutschland, Österreich und der Schweiz 1885, Gera, Germany
2. 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.
3. "Woodsia R.Br". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2019-12-01.
4. Broughton Cobb; Elizabeth Farnsworth; Cheryl Lowe (2005). A Field Guide to Ferns and their Related Families: Northeastern and Central North America. The Peterson Field Guide Series (2nd ed.). New York: Houghton Mifflin Company. ISBN 0618394060.
5. 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)
6. "Physematium Kaulf.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2023-06-13
7. Hassler, Michael. "Woodsia". World Ferns. Retrieved 13 June 2023.
8. Hassler, Michael. "× Woodsimatium". World Ferns. Retrieved 16 June 2023.