Editing Azolla (section)

==Phylogeny==
Phylogeny of ''Azolla''<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= |page= 909768| doi=10.3389/fpls.2022.909768 |pmid= 36092417|pmc= 9449725|bibcode= |doi-access=free}}</ref><ref>{{cite web|last1= |first1= |last2= |display-authors=et al. |year=2023 |title=Tree viewer: interactive visualization of FTOL |url=https://fernphy.github.io/viewer.html |version=FTOL v1.4.0 [GenBank release 253] |access-date=8 March 2023}}</ref>
{{Clade | style=font-size:100%;line-height:80%
|label1=''Azolla''
|1={{clade
  |1=''[[Azolla nilotica|A. nilotica]]'' <small>[[Decne.]] ex [[Mett.]]</small> (Nile Azolla)
  |2={{clade
    |1={{clade
      |1=''[[Azolla filiculoides|A. filiculoides]]'' <small>[[Jean-Baptiste Lamarck|Lam.]]</small> (Large mosquito fern)
      |2=''[[Azolla rubra|A. rubra]]'' <small>[[R.Br.]]</small>
       }}
    |2={{clade
      |1=''[[Azolla caroliniana|A. caroliniana]]'' <small>Willdenow 1810</small> (Eastern/Carolinian mosquito fern)
      |2={{clade
        |1=''[[Azolla cristata]]'' <small>[[Kaulf.]]</small> (Mexican mosquito fern)
        |2=''[[Azolla pinnata|A. pinnata]]'' <small>R.Br.</small> (Ferny/Pacific Azolla; Feathered mosquitofern)
         }}
       }}
     }}
   }}
}}

Other species include:<ref>{{cite journal |last1=Evrard |first1=C. |last2=Van Hove |first2=C. |title=Taxonomy of the American ''Azolla'' species (Azollaceae): A critical review |journal=Systematics and Geography of Plants |date=2004 |volume=74 |pages=301–318}}</ref><ref name=trop2>{{cite web |url=http://www.tropicos.org/NameSubordinateTaxa.aspx?nameid=40023609 |title=Name - ''Azolla'' Lam. subordinate taxa |work=Tropicos |publisher=Missouri Botanical Garden |location=Saint Louis, Missouri |access-date=February 19, 2010}}</ref><ref name=ipni>{{cite web |url=http://www.ipni.org:80/ipni/advPlantNameSearch.do?find_genus=Azolla&find_rankToReturn=spec&output_format=normal&query_type=by_query&back_page=plantsearch |title=Query Results for Genus ''Azolla'' |work=[[International Plant Names Index|IPNI]] |access-date=February 19, 2010}}</ref><ref name=nobanis>{{cite web |url=http://www.nobanis.org/files/factsheets/Azolla_filiculoides.pdf |title=NOBANIS -- Invasive Alien Species Fact Sheet -- ''Azolla filiculoides'' |author=Hussner, A. |location=[[Heinrich Heine Universität]], [[Düsseldorf]] |year=2006 |work=Online Database of the North European and Baltic Network on Invasive Alien Species |access-date=February 19, 2010}}</ref>

At least six [[extinct]] species are known from the [[fossil record]]:
*''[[Azolla intertrappea]]'' <small>[[Birbal Sahni|Sahni]] & H.S. Rao, 1934</small> ([[Eocene]], [[India]])<ref name="Arnold1955">{{cite journal |last1=Arnold |first1=C.A. |year=1955 |title=A Tertiary ''Azolla'' from British Columbia |journal=Contributions from the Museum of. Paleontology, University of Michigan |volume=12 |issue=4 |pages=37–45 |url=http://deepblue.lib.umich.edu/bitstream/2027.42/48289/2/ID129.pdf}}</ref>
*''[[Azolla berryi]]'' <small>[[Rowland W. Brown|Brown]], 1934</small> ([[Eocene]], [[Green River Formation]], [[Wyoming]])<ref name="Arnold1955"/>
*''[[Azolla prisca]]'' <small>[[Marjorie Elizabeth Jane Chandler|Chandler]] & [[Eleanor Mary Reid|Reid]], 1926</small> ([[Oligocene]], [[London Clay]], [[Isle of Wight]])<ref name="Arnold1955"/>
*''[[Azolla tertiaria]]'' <small>[[Edward W. Berry|Berry]], 1927</small> ([[Pliocene]], [[Esmeralda Formation]], [[Nevada]])<ref name="Arnold1955"/>
*''[[Azolla primaeva]]'' <small>([[David P. Penhallow|Penhallow]]) [[Chester A. Arnold|Arnold]], 1955</small> ([[Eocene]], [[Allenby Formation]], [[British Columbia]])<ref name="Arnold1955"/>
*''[[Azolla boliviensis]]'' <small>[[Vivi Vajda|Vajda]] & [[Stephen McLoughlin|McLoughlin]], 2005</small> ([[Maastrichtian]] – [[Paleocene]], [[Eslaboacuten Formation]] and [[Flora Formation]] [[Bolivia]])<ref name="Vajda2005">{{cite journal |last1=Vajda |first1=V |author2=McLoughlin, S. |year=2005 |title=A new Maastrichtian-Paleocene ''Azolla'' species from Bolivia, with a comparison of the global record of coeval ''Azolla'' microfossils |journal=Alcheringa: An Australasian Journal of Palaeontology |volume=29 |issue=2 |pages=305–329 |doi=10.1080/03115510508619308 |bibcode=2005Alch...29..305V |s2cid=128643041}}</ref>