Woodsia

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Woodsia
Illustration Woodsia alpina0.jpg
Woodsia alpina[2]
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Class: Polypodiopsida
Order: Polypodiales
Suborder: Aspleniineae
Family: Woodsiaceae
Herter[1]
Genus: Woodsia
R.Br.[1]

Woodsia is a genus of ferns in the order Polypodiales. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is the only genus in the family Woodsiaceae, placed in the suborder Aspleniineae.[1] The family can also be treated as the subfamily Woodsioideae of a very broadly defined family Aspleniaceae sensu lato.[3] Species of Woodsia are commonly known as cliff ferns.[4]

Taxonomy[edit]

Woodsiaceae formerly included the members of the families Athyriaceae and Diplaziopsidaceae, but analysis has consistently shown that they should be treated as separate families.[5] The following cladogram for the suborder Aspleniineae (as eupolypods II), based on Lehtonen (2011),[6] and Rothfels & al. (2012),[7] shows a likely phylogenetic relationship between the Woodsiaceae and the other families of the Aspleniineae.

Aspleniineae (eupolypods II)

Cystopteridaceae

Rhachidosoraceae

Diplaziopsidaceae

Aspleniaceae

Hemidictyaceae

Thelypteridaceae

Woodsiaceae

Onocleaceae

Blechnaceae

Athyriaceae

Species[edit]

There are about 40–50 species of the genus Woodsia.[1] As of December 2019, Plants of the World Online accepted the following species:[8]

Some hybrids are also known:[8]

References[edit]

  1. ^ a b c d 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. ^ illustration from Prof. Dr. Otto Wilhelm Thomé Flora von Deutschland, Österreich und der Schweiz 1885, Gera, Germany
  3. ^ 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.
  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.
  5. ^ Maarten J. M. Christenhusz; Xian-Chun Zhang & Harald Schneider (2011). "A linear sequence of extant families and genera of lycophytes and ferns" (PDF). Phytotaxa. 19: 7–54.
  6. ^ Samuli Lehtonen (2011). "Towards Resolving the Complete Fern Tree of Life" (PDF). PLoS ONE. 6 (10): e24851. doi:10.1371/journal.pone.0024851. PMC 3192703. PMID 22022365.
  7. ^ Carl J. Rothfels; Anders Larsson; Li-Yaung Kuo; Petra Korall; Wen- Liang Chiou; Kathleen M. Pryer (2012). "Overcoming Deep Roots, Fast Rates, and Short Internodes to Resolve the Ancient Rapid Radiation of Eupolypod II Ferns". Systematic Biology. 61 (1): 70. doi:10.1093/sysbio/sys001. PMID 22223449.
  8. ^ a b "Woodsia R.Br.". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2019-12-01.