Marattia
| Marattia | |
|---|---|
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| Marattia douglasii | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Marattiales |
| Family: | Marattiaceae |
| Genus: | Marattia Swartz |
| Type species | |
| Marattia alata Swartz
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| Species | |
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See text | |
| Synonyms | |
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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.[1][2] 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
[edit]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.[3] Subsequent classifications have maintained this placement.[4][5][6]
Species list
[edit]- Marattia alata Sw. – Jamaica and Cuba
- Marattia douglasii (C. Presl) Baker – pala, kapua ilio, or Hawaii potato fern; Hawaii
- Marattia excavata Underw. – Mexico to Panama
- Marattia interposita Christ – Guatemala to Panama
- Marattia laxa Kunze – Mexico to Panama
- Marattia weinmanniifolia Liebm. – southern Mexico to El Salvador
References
[edit]- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ "Tree viewer: interactive visualization of FTOL". FTOL v1.3.0. 2022. Retrieved 12 December 2022.
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