Diplazium

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Diplazium
Diplazium dietrichianum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Suborder: Aspleniineae
Family: Athyriaceae
Genus: Diplazium
Sw. (1801)
Species

See text

Synonyms[1][2]
List
  • Allantodia R.Br. (1810)
  • Anisogonium C.Presl (1836)
  • Arcasplenium T.Moore (1901)
  • Brachysorus C.Presl (1851)
  • Callipteris Bory (1804)
  • Dictyodroma Ching (1964)
  • Digrammaria C.Presl (1836)
  • Hypochlamys Fée (1852)
  • Lotzea Klotzsch & H.Karst. (1847)
  • Microstegia C.Presl (1851)
  • Monomelangium Hayata (1928)
  • Ochlogramma C.Presl (1851)
  • Oxygonium C.Presl (1836)
  • Pteriglyphis Fée (1843)

Diplazium is a

indusia in this genus lie on both sides of the vein. These ferns were earlier considered part of either the Athyriaceae, Dryopteridaceae,[3] Aspleniaceae, or Polypodiaceae families or recognized as belonging to their own taxonomic family. The Pteridophyte Phylogeny Group classification of 2016 (PPG I) places the genus in the Athyriaceae.[1] The taxonomy of the genus is difficult and poorly known, and by 2009 has never been the subject of a complete monographic study.[4] Their distribution is pantropical, with a few species extending into temperate areas.[3][5]

The

sporangia
are brownish.

Some common species include Diplazium hymenodes, the peacock fern; Diplazium esculentum, the vegetable fern; Diplazium molokaiense, the Molokai twinsorus fern; and Diplazium lonchophyllum, the lance-leaved glade fern.

Taxonomy

Diplazium is in the family

eupolypods II clade of the order Polypodiales.[6][7] The common glade fern of North America, Diplazium pycnocarpon, is found not to belong to that genus, but rather placed in the genus Homalosorus (Diplaziopsidaceae).[6] Two further species formerly placed in the genus have been transferred to a new genus, Desmophlebium.[8]

Selected species

Notes

  1. ^ The trophopod is food storage organ described from a number of North American ferns. It consists of the enlarged and modified leaf base filled with starch storage tissue. See W. H. Wagner, Jr. and D. M. Johnson, Taxon, Vol. 32, No. 2 (May, 1983), pp. 268-269 for more information on this organ.

References

  1. ^
    S2CID 39980610
  2. ^ Diplazium Sw. Plants of the World Online. Retrieved 31 August 2023.
  3. ^ a b "3. Diplazium Swartz", Flora of North America
  4. ^ Leticia Pacheco and Robbin C. Moran. Lectotypification of Several Names Currently Placed in Diplazium (Woodsiaceae). American Fern Journal, Vol. 93, No. 2 (Apr. - Jun., 2003), pp. 90-92
  5. ^ "Diplazium esculentum". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 12 January 2018.
  6. ^
    doi:10.11646/phytotaxa.19.1.2
    .
  7. JSTOR 25065646. Archived from the original
    (PDF) on 2008-02-26.
  8. doi:10.12705/651.2
    . Retrieved 2019-07-26.
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