Eupolypods II

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Eupolypods II
Blechnum moorei 1.jpg
Blechnum moorei
Scientific classification
Kingdom: Plantae
Division: Pteridophyta
Class: Polypodiopsida
Order: Polypodiales
(unranked): Eupolypods II
Families

Aspleniaceae
Athyriaceae
Blechnaceae
Cystopteridaceae
Diplaziopsidaceae
Hemidictyaceae
Onocleaceae
Rhachidosoraceae
Thelypteridaceae
Woodsiaceae

Synonyms

Blechnales Pic.Serm. ex Reveal 1993

Eupolypods II is a clade of ferns in the order Polypodiales, under the class Polypodiopsida.[1] This group generally corresponds with the order Blechnales described by J. L. Reveal in 1993.[2] However, the Blechnales families were found to be embedded within the larger definition of the order Polypodiales describe by Smith et al., 2006,[1] so according to their system, the group is treated as an informal clade.[3]

This clade includes some important ferns, including the Sensitive fern, Onoclea sensibilis, which grows as a virtual weed throughout much of its temperate North American range, and ferns of the genus Thelypteris, a genus that has shown remarkable speciation. It also includes one of the more common horticultural ferns, the Ostrich fern, Matteuccia struthiopteris.

Phylogenic relationships[edit]

The following diagram shows a likely phylogenic relationship between the families of eupolypods II, based on Lehtonen, 2011,[3] and Rothfels & al., 2012.[4]

eupolypods II

Cystopteridaceae





Rhachidosoraceae




Diplaziopsidaceae




Aspleniaceae



Hemidictyaceae







Thelypteridaceae




Woodsiaceae





Onocleaceae



Blechnaceae




Athyriaceae







References[edit]

  1. ^ a b Alan R. Smith, Kathleen M. Pryer, Eric Schuettpelz, Petra Korall, Harald Schneider & Paul G. Wolf (2006). "A classification for extant ferns". Taxon 55 (3): 705–731. doi:10.2307/25065646. 
  2. ^ Rodolfo Emilio Giuseppe Pichi-Sermolli ex J. L. Reveal in Phytologia 74:175. 1993.
  3. ^ a b Samuli Lehtonen (2011). "Towards Resolving the Complete Fern Tree of Life". PLoS ONE 6 (10): e24851. doi:10.1371/journal.pone.0024851. PMC 3192703. PMID 22022365. 
  4. ^ 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): 490–509. doi:10.1093/sysbio/sys001. PMID 22223449.