Selected Species
Azolla caroliniana Willd.
Azolla circinata Oltz & Hall
Azolla filiculoides Lam.
Azolla japonica Franch. & Sav.
Azolla mexicana C.Presl
Azolla microphylla Kaulf.
Azolla nilotica Decne. ex Mett.
Azolla pinnata R.Br.
Azolla rubra R.Br.
- List sources :
At least six extinct species are known from the fossil record:
- Azolla intertrappea (Eocene, India)
- Azolla berryi (Eocene, Green River Formation, Wyoming)
- Azolla prisca (Oligocene, London Clay, Isle of Wight)
- Azolla tertiaria (Pliocene, Esmeralda Formation, Nevada)
- Azolla primaeva (Eocene, Allenby Formation, British Columbia)
- Azolla boliviensis (Maastrichtian - Paleocene, Eslaboacuten Formation& Flora Formation Bolvia)
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