Didymoglossum is a tropical genus of ferns in the family Hymenophyllaceae. It comprises more than 30 epilithic or low-epiphytic species under two subgenera.[2] The genus is accepted in the Pteridophyte Phylogeny Group classification of 2016 (PPG I), but not by some other sources which sink it into a broadly defined Trichomanes.

Didymoglossum
Didymoglossum reptans
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Hymenophyllales
Family: Hymenophyllaceae
Subfamily: Trichomanoideae
Genus: Didymoglossum
Desv.[1]
Type species
Didymoglossum muscoides
(Dw.) Desvaux 1827
Subgenera
  • Subg. Didymoglossum
  • Subg. Microgonium
Synonyms
  • Hemiphlebium Presl 1843
  • Lecanium Presl 1843 non Reinwardt 1825
  • Lecanolepis Pichi-Sermolli 1973
  • Microgonium Presl 1843

Taxonomy

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The genus Didymoglossum was first described by Nicaise Auguste Desvaux in 1827.[1] Its status, like other genera in the subfamily Trichomanoideae, remains disputed. The Pteridophyte Phylogeny Group classification of 2016 (PPG I) accepts the genus, placing it in the subfamily Hymenophylloideae and saying that there are about 30 species.[3] As of October 2019, the Checklist of Ferns and Lycophytes of the World listed 55 species,[1] whereas Plants of the World Online sank the genus into Trichomanes.[4]

Phylogeny of Didymoglossum[5][6]

Subgenera and species

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Subgenus Didymoglossum

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Subgenus Didymoglossum Ebihara & K.Iwats. is mainly neotropical, with about 20 species,[2] which include:

Subgenus Microgonium

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Subgenus Microgonium (C.Presl) Ebihara & K.Iwats. is mainly paleotropical with more than 10 species,[2] which include:

References

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  1. ^ a b c Hassler, Michael & Schmitt, Bernd (August 2019). "Didymoglossum". Checklist of Ferns and Lycophytes of the World. 8.02. Archived from the original on 2017-09-02. Retrieved 2019-10-07.
  2. ^ a b c Ebihara et al.: A Taxonomic Revision of Hymenophyllaceae Blumea - Biodiversity, Evolution and Biogeography of Plants, Volume 51, Number 2, July 2006 , pp. 221-280(60)
  3. ^ 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.
  4. ^ "Didymoglossum Desv". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2019-10-07.
  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 v1.5.0 [GenBank release 256]. 2023. Retrieved 17 August 2023.