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Polytaenium
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Polypodiales
Family:	Pteridaceae
Subfamily:	Vittarioideae
Genus:	Polytaenium; J.Sm.
Type species
	Polytaenium lanceolatum; (Swartz) Desvaux
Species
	See text.
Synonyms
	Antrophyum subg. Polytaenium (Desv.) Bened. ; Anetium (Kunze) Splitg. ; Pteridanetium Copel. (nom. superfl.) ; Acrostichum sect. Anetium Kunze ;

Polytaenium is a genus of ferns in the subfamily Vittarioideae of the family Pteridaceae.^[3] Species are native to Mexico and Southern America.^[1]

Phylogeny

As of December 2019^[update], the Checklist of Ferns and Lycophytes of the World recognized the following species:^[2]

Phylogeny of Polytaenium^[4]^[5]

P. citrifolium (L.) Schuettp.^[6]

P. lineatum J.Sm.

P. cajenense (Desv.) Benedict

P. guayanense (Hieron.) Alston

	P. chlorosporum (Mickel & Beitel) E.H.Crane

	P. feei (W.Schaffn. ex Fée) Maxon

^ ^a ^b "Polytaenium J.Sm.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2019-12-30
^ ^a ^b Hassler, Michael & Schmitt, Bernd (November 2019), "Polytaenium", Checklist of Ferns and Lycophytes of the World, 8.11, retrieved 2019-12-30
^ 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. doi:10.3389/fpls.2022.909768. PMC 9449725. PMID 36092417.
^ "Tree viewer: interactive visualization of FTOL". FTOL v1.5.0 [GenBank release 256]. 2023. Retrieved 17 August 2023.
^ "Polytaenium citrifolium (L.) Schuettp.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2019-12-30

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