Didymochlaena

Didymochlaena is a genus of fern with only one species, Didymochlaena truncatula, also known under the synonym Didymochlaena sinuosa.[1] In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is the only genus in the family Didymochlaenaceae.[2] Alternatively, the family may be placed in a very broadly defined family Polypodiaceae sensu lato as the subfamily Didymochlaenoideae.[3] It is commonly grown as a house plant, and is sometimes known as the mahogany maidenhair.

Didymochlaena
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Suborder: Polypodiineae
Family: Didymochlaenaceae
Genus: Didymochlaena
Desv.
Species:
D. truncatula
Binomial name
Didymochlaena truncatula
Synonyms[1]
  • Adiantum lunulatum Houtt.
  • Aspidium cultratum C.Presl
  • Aspidium squamatum Willd.
  • Aspidium squamosum Poir.
  • Aspidium truncatulum Sw.
  • Asplenium fruticosum Vell.
  • Asplenium ramosum Poir.
  • Didymochlaena dimidiata Kunze
  • Didymochlaena lunulata Desv.
  • Didymochlaena microphylla (Bonap.) C.Chr.
  • Didymochlaena pulcherrima (Raddi) Herter
  • Didymochlaena sinuosa Desv.
  • Didymochlaena squamata (Willd.) Desv.
  • Diplazium pulcherrimum Raddi
  • Lindsaea spinulosa Brause
  • Monochlaena sinuosa (Desv.) Gaudich.
  • Nephrolepis lunulata Keyserl.
  • Tegularia adiantifolia Reinw.

Phylogeny

The following cladogram for the suborder Polypodiineae (eupolypods I), based on the consensus cladogram in the Pteridophyte Phylogeny Group classification of 2016 (PPG I),[2] shows a likely phylogenetic relationship between Didymochlaenaceae and the other families of the clade.

Polypodiineae (eupolypods I)
 

Didymochlaenaceae

 
 
 

Hypodematiaceae

 
 
 

Dryopteridaceae

 
 
 
 

Nephrolepidaceae

 
 

Lomariopsidaceae

 
 
 
 

Tectariaceae

 
 
 

Oleandraceae

 
 
 

Davalliaceae

 
 

Polypodiaceae

 
 
 
 
 
 
 
 

References
  1. "Didymochlaena truncatula (Sw.) J.Sm.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2019-07-23
  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. 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.


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