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From Wikipedia, the free encyclopedia

Metaxya
Metaxya rostrata
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Cyatheales
Family: Metaxyaceae
Pic.Serm.
Genus: Metaxya
C.Presl
Type species
Metaxya rostrata
(Kunth) C.Presl
Species

See text.

Metaxyaceae distribution
Synonyms
  • Amphidesmium Schott 1834 ex Kunze

Metaxya is a neotropical genus of ferns in the order Cyatheales. It is the only genus in the family Metaxyaceae in the Pteridophyte Phylogeny Group classification of 2016 (PPG I).[1] Alternatively, the genus may be placed in the subfamily Metaxyoideae of a more broadly defined family Cyatheaceae,[2] the family placement used in Plants of the World Online as of November 2019.[3]

The species of the genus are characterized by large fronds that approach 8 ft (2.5 m) in length.

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Transcription

Species

As of January 2023, Plants of the World Online accepted the following species:[3]

Image Scientific name Distribution
Metaxya contamanensis Tuomisto & G.G.Cárdenas Peru to Bolivia
Metaxya elongata Tuomisto & G.G.Cárdenas Belize, Colombia, Costa Rica, Guatemala, Honduras, Panamá, Venezuela
Metaxya lanosa A.R.Sm. & Tuomisto Peru, Venezuela (Amazonas) to Guyana.
Metaxya rostrata (Kunth) C.Presl Mexico (Chiapas), Belize, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guatemala, Guyana, Honduras, Nicaragua, Panamá, Peru, Suriname, Trinidad-Tobago, Venezuela
Metaxya scalaris Tuomisto & G.G.Cárdenas Brazil, French Guiana, Guyana, Suriname, Venezuela

Phylogeny

Phylogeny of Metaxya[4][5]

M. parkeri (Hooker & Greville) Smith

M. rostrata (Kunth) Presl

M. scalaris Tuomisto & Cárdenas

M. lanosa Smith & Tuomisto

M. contamanensis Tuomisto & Cárdenas

M. elongata Tuomisto & Cárdenas

References

  1. ^ 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.
  2. ^ 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.
  3. ^ a b "Metaxya C.Presl". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2019-11-25.
  4. ^ 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.
  5. ^ "Tree viewer: interactive visualization of FTOL". FTOL v1.4.0 [GenBank release 253]. 2023. Retrieved 8 March 2023.
  • Media related to Metaxya at Wikimedia Commons
  • Data related to Metaxya at Wikispecies
This page was last edited on 13 August 2023, at 11:40
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