Cystopteridaceae

Cystopteridaceae
Scientific classification
Kingdom:Plantae
Division:Pteridophyta
Class:Polypodiopsida/Pteridopsida
(disputed)
Order:Polypodiales
(unranked):Eupolypods II
Family:Cystopteridaceae
(Payer) Schmakov
Genera

Cystopteridaceae are a family of ferns in the eupolypods II clade of the order Polypodiales, class Polypodiopsida.[1] They include four genera: Acystopteris, Cystoathyrium, Cystopteris, and Gymnocarpium. Gymnocarpium and Cystopteris have been found to be sister to the remaining Eupolypods II.[2]

Cystopteridaceae are small or medium-sized ferns in forests and crevices.[2] They generally have thin laminae, and small, round, naked sori.

Phylogenic relationships

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

eupolypods II

 

Cystopteridaceae

 
 

 

 

Rhachidosoraceae

 
 

 

Diplaziopsidaceae

 
 

 

Aspleniaceae

 
 

Hemidictyaceae

 
 
 
 
 

 

Thelypteridaceae

 
 

 

Woodsiaceae

 
 

 

 

Onocleaceae

 
 

Blechnaceae

 
 
 

Athyriaceae

 
 
 
 
 
 

References

  1. ↑ Alan R. Smith; Kathleen M. Pryer; Eric Schuettpelz; Petra Korall; Harald Schneider; Paul G. Wolf (2006). "A classification for extant ferns" (PDF). Taxon. 55 (3): 705–731. doi:10.2307/25065646. Archived from the original (PDF) on 2008-02-26.
  2. 1 2 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.
  3. ↑ 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.
  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): 70. doi:10.1093/sysbio/sys001. PMID 22223449.


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