Marattia

Marattia
Marattia douglasii
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Marattiales
Family: Marattiaceae
Genus: Marattia
Swartz
Type species
Marattia alata
Swartz
Species

See text

Synonyms
  • Celanthera Thouin
  • Myriotheca Commerson ex de Jussieu non Zeiller
  • Discostegia Presl
  • Stibasia Presl
  • †Angiopteridium Schimper

Marattia is a small genus of basal, large, fleshy eusporangiate ferns, found in the Americas.

Formerly considered to be a much larger genus, genetic analysis has shown that Marattia in the broad sense was paraphyletic, and subsequently the genera Ptisana and Eupodium were split off. Except for one species in Hawaii, the genus is neotropical.

The plants are large and terrestrial, with more or less erect rhizomes and fronds being 2-5 times pinnate. Sporangia are fused into synangia, and spores are monolete.

Basal chromosome count is 2n=80. The type species is M. alata.

Taxonomy

The Smith et al. classification of 2006, based on molecular phylogeny, placed Marattia in Marattiaceae. It is the type genus of the family Marattiaceae, order Marattiales and class Marattiopsida. Subsequent classifications have maintained this placement.

Species

As of October 2026, the Checklist of Ferns and Lycophytes of the World and World Flora Online recognize 6 species in Marattia. Plants of the World Online recognizes 7 species.

Phylogeny

The following phylogeny of Marattia is based on GenBank plastid data.

References

  1. ↑ Murdock, Andrew G. (2008). "Phylogeny of marattioid ferns (Marattiaceae) inferring a root in the absence of a closely related outgroup". American Journal of Botany. 95 (5): 626–641. doi:10.3732/ajb.2007308. PMID 21632388.
  2. ↑ Murdock, Andrew G. (2008). "A taxonomic revision of the eusporangiate fern family Marattiaceae, with description of a new genus Ptisana". Taxon. 57 (3): 737–755. Bibcode:2008Taxon..57..737M. doi:10.1002/tax.573007.
  3. ↑ Smith, Alan R.; Pryer, Kathleen M.; Schuettpelz, Eric; Korall, Petra; Schneider, Harald; Wolf, Paul G. (2006). "A classification for extant ferns" (PDF). Taxon. 55 (3): 705–731. doi:10.2307/25065646. JSTOR 25065646.
  4. ↑ Christenhusz, Maarten J. M.; Zhang, Xian-Chun; Schneider, Harald (2011). "A linear sequence of extant families and genera of lycophytes and ferns" (PDF). Phytotaxa. 19: 7–54. doi:10.11646/phytotaxa.19.1.2.
  5. ↑ 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.
  6. ↑ 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.
  7. ↑ Hassler, Michael. "Marattia". World Ferns. Retrieved 18 October 2026.
  8. ↑ "Marattia Sw." World Flora Online. Retrieved 18 October 2026.
  9. ↑ "Marattia Sw". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 18 October 2026.
  10. ↑ 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. Bibcode:2022FrPS...1309768N. doi:10.3389/fpls.2022.909768. PMC 9449725. PMID 36092417.
  11. ↑ "Tree viewer: interactive visualization of FTOL". FTOL v1.9.0 (GenBank release 273). 2026. Retrieved 18 October 2026.