Marattia

Marattia
Marattia douglasii
Scientific 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
CelantheraThouin MyriothecaCommerson ex de Jussieu non Zeiller DiscostegiaPresl StibasiaPresl †AngiopteridiumSchimper

Marattia is a small genus of basal, large, fleshy eusporangiate ferns. It is the type genus of the family Marattiaceae, order Marattiales and class Marattiopsida. ^[1] 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. ^{[2] [3]} 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.

Species list

• 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

Phylogeny of Marattia ^{[4] [5]}

	M. douglasii M. laxa M. alata M. weinmanniifolia

References

1. Smith, Alan R.; Kathleen M. Pryer; Eric Schuettpelz; Petra Korall; Harald Schneider; Paul G. Wolf (2006). "A classification for extant ferns" (PDF). Taxon. 55 (3): 705–731. doi:10.2307/25065646. JSTOR   25065646. Archived from the original (PDF) on 2008-02-26.
2. 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.
3. 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. doi:10.1002/tax.573007.
4. 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.
5. "Tree viewer: interactive visualization of FTOL". FTOL v1.3.0. 2022. Retrieved 12 December 2022.

External links

Media related to Marattia at Wikimedia Commons