Metaxya

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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.

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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.

Species

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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
File:Metaxya lanosa.jpg Metaxya lanosa A.R.Sm. & Tuomisto Peru, Venezuela (Amazonas) to Guyana.
File:14938-Metaxya rostrata-Tabaro.jpg 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

[edit | edit source]

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

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  • Error creating thumbnail: File missing Media related to Lua error in Module:Commons_link at line 62: attempt to index field 'wikibase' (a nil value). at Wikimedia Commons
  • File:Wikispecies-logo.svg Data related to Metaxya at Wikispecies

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