| 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 | |
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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
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
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References
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.
- "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.