Didymochlaena

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Didymochlaena
DidymochlaenaTruncatula.jpg
Didymochlaena truncatula
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Suborder: Polypodiineae
Family: Didymochlaenaceae
Ching ex Li Bing Zhang & Liang Zhang
Genus: Didymochlaena
Desv.
Type species
Didymochlaena sinuosa
Desv.
Species

See text

Synonyms [1]
  • Hippodium Gaudich.
  • HysterocarpusLangsd. ex Fée
  • MonochlaenaGaudich. non de Cassini
  • Tegularia Reinw.

Didymochlaena is a genus of ferns. 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]

Contents

Description

Members of this genus are terrestrial, evergreen plants growing 0.8–3 m (2 ft 7 in – 9 ft 10 in) tall. The fronds arise from upright, scaly rhizomes. The leaves are bipinnate and imparipinnate. [4]

Phylogeny

This genus includes the following species: [1]

External phylogeny from PPG I 2016 [2] Internal phylogeny from Fern Tree of Life [5] [6]
Polypodiineae
(eupolypods I)
Didymochlaena

D. truncatula (Sw.) J.Sm.

section

D. mesoamericanaLi Bing Zhang & H.Shang

D. alpina Li Bing Zhang & H.Shang

D. amazonicaLi Bing Zhang & H.Shang

Amazonicae
section

D. sinuosa Desv.

D. philippensisLi Bing Zhang & H.Shang

D. punctataLi Bing Zhang & H.Shang

D. oceanicaLi Bing Zhang & H.Shang

D. fijiensisLi Bing Zhang & H.Shang

D. solomonensisLi Bing Zhang & H.Shang

Didymochlaena
section

D. cameroonensisLi Bing Zhang & H.Shang

D. dimidiata Kunze

D. spinulosa(Brause) Li Bing Zhang & H.Shang

D. attenuata(Bonap.) Li Bing Zhang & H.Shang

D. madagascariensisLi Bing Zhang & H.Shang

D. deltoideaLi Bing Zhang & H.Shang

D. bipinnatipartita(Bonap.) Li Bing Zhang & H.Shang

D. microphylla(Bonap.) C.Chr.

Spinulosae

Other species include:[ citation needed ]

References

  1. 1 2 "Didymochlaena Desv". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 3 June 2024.
  2. 1 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.
  4. Shang, Hui; Zhang, Li-Bing (2023). "Systematics of the Fern Genus Didymochlaena (Didymochlaenaceae)". Systematic Botany . 48 (1): 110–139. doi:10.1600/036364423X16758873924144.
  5. Nitta, Joel H.; Schuettpelz, Eric; Ramírez-Barahona, Santiago; Iwasaki, Wataru; et al. (2022). "An Open and Continuously Updated Fern Tree of Life". Frontiers in Plant Science. 13: 909768. doi: 10.3389/fpls.2022.909768 . PMC   9449725 . PMID   36092417.
  6. "Tree viewer: interactive visualization of FTOL". FTOL v1.7.0 (GenBank release 261). 2024. Retrieved 1 May 2025.