Metaxya
| Metaxya | |
|---|---|
| |
| Metaxya rostrata | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Cyatheales |
| Family: | Metaxyaceae Pic.Serm. |
| Genus: | Metaxya C.Presl |
| Type species | |
| Metaxya rostrata (Kunth) C.Presl
| |
| Species | |
| |
| Metaxyaceae distribution | |
| Synonyms | |
| |
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[update].[3]
The species of the genus are characterized by large fronds that approach 8 ft (2.5 m) in length.
Species
As of January 2023[update], 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
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References
- ^ 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.
- ^ 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.
- ^ a b "Metaxya C.Presl". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2019-11-25.
- ^ 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.
- ^ "Tree viewer: interactive visualization of FTOL". FTOL v1.4.0 [GenBank release 253]. 2023. Retrieved 8 March 2023.
External links
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