Marattia

{{Short description|Genus of ferns}} {{Automatic taxobox | image = Starr-111003-0516-Marattia douglasii-habit-Waikamoi Flume Rd-Maui (25118243055).jpg | image_caption = ''Marattia douglasii'' | taxon = Marattia | authority = Swartz | type_species = ''Marattia alata'' | type_species_authority = Swartz | diversity = | diversity_link = | subdivision_ranks = Species | subdivision = 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.<ref name="Murdock 2008a">{{cite journal | doi=10.3732/ajb.2007308 | last=Murdock | first=Andrew G.| year=2008 | title= Phylogeny of marattioid ferns (Marattiaceae) inferring a root in the absence of a closely related outgroup | journal=American Journal of Botany | volume= 95 | issue=5 | pages= 626–641 | pmid=21632388}}</ref><ref name="Murdock 2008b">{{cite journal | last=Murdock | first=Andrew G.| year=2008 | title= A taxonomic revision of the eusporangiate fern family Marattiaceae, with description of a new genus Ptisana | journal=Taxon | volume= 57 | issue=3 | pages= 737–755 | doi=10.1002/tax.573007| bibcode=2008Taxon..57..737M}}</ref> 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.<ref name=Smith-2006>{{cite journal |last1=Smith | first1=Alan R. |last2=Pryer |first2=Kathleen M. |author-link2=Kathleen M. Pryer |last3=Schuettpelz |first3=Eric |last4=Korall |first4=Petra |last5=Schneider |first5=Harald |last6=Wolf |first6=Paul G. |year=2006 |title=A classification for extant ferns |journal=Taxon |volume=55 |issue=3 |pages=705–731 |url=https://www.idigbio.org/wiki/images/9/95/Smith_et_al_2006.pdf |doi=10.2307/25065646 |jstor=25065646 }}</ref> Subsequent classifications have maintained this placement.<ref name=Christenhusz-2011>{{cite journal |last1=Christenhusz |first1=Maarten J. M. |author-link1=Maarten J. M. Christenhusz |last2=Zhang |first2=Xian-Chun |last3=Schneider |first3=Harald |year=2011 |title=A linear sequence of extant families and genera of lycophytes and ferns |journal=Phytotaxa|volume=19|pages=7–54 |doi=10.11646/phytotaxa.19.1.2 |url=http://www.mapress.com/phytotaxa/content/2011/f/pt00019p054.pdf}}</ref><ref name=ChriChas14>{{Cite journal |last1=Christenhusz |first1=Maarten J.M. |author-link1=Maarten J. M. Christenhusz |last2=Chase |first2=Mark W. |author-link2=Mark Wayne Chase |date=2014 |title=Trends and concepts in fern classification |journal=Annals of Botany |volume=113 |issue=9 |pages=571–594 |doi=10.1093/aob/mct299 |pmid=24532607 |pmc=3936591}}</ref><ref name=PPGI>{{citation |mode=cs1|author=PPG I |title=A community-derived classification for extant lycophytes and ferns |year=2016 |journal=Journal of Systematics and Evolution |volume=54 |issue=6 |pages=563–603 |doi=10.1111/jse.12229|s2cid=39980610 |doi-access=free }}</ref>

==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''<ref>{{cite journal |last1=Nitta |first1=Joel H. |last2=Schuettpelz |first2=Eric |last3=Ramírez-Barahona |first3=Santiago |last4=Iwasaki |first4=Wataru |display-authors=et al. |year=2022 |title=An Open and Continuously Updated Fern Tree of Life |journal=Frontiers in Plant Science |volume=13 |issue= |article-number= 909768| doi=10.3389/fpls.2022.909768 |pmid= 36092417|pmc= 9449725|bibcode= 2022FrPS...1309768N|doi-access=free}}</ref><ref>{{cite web|last1= |first1= |last2= |first2= |last3= |first3= |last4= |first4= |display-authors=et al. |year=2022 |title=Tree viewer: interactive visualization of FTOL |url=https://fernphy.github.io/viewer.html |version=FTOL v1.3.0 |access-date=12 December 2022}}</ref> {{clade|style=font-size:90%;line-height:80%;width:350px |1={{Clade |1=''M. douglasii'' |2={{Clade |1=''M. laxa'' |2={{Clade |1=''M. alata'' |2=''M. weinmanniifolia'' }} }} }} }}

==References== {{Reflist}}

Category:Marattiidae Category:Ferns of the Americas Category:Fern genera Category:Taxa named by Olof Swartz Category:Taxa described in 1788