Azolla sp.-Azolla filiculoides Lam.

국표에는 Azolla (물개구리밥속)이 9 종이다.

 

Azolla (mosquito fern, duckweed fern, fairy moss, water fern) is a genus of seven species of aquatic ferns in the family Salviniaceae. They are extremely reduced in form and specialized, looking nothing like other typical ferns but more resembling duckweed or some mosses. Azolla filiculoides is one of just two fern species for which a reference genome has been published. It is believed that this genus grew so prolifically during the Eocene (and thus absorbed such a large amount of carbon) that it triggered a global cooling event that has lasted to the present.

 

Azolla is considered an invasive plant in wetlands, freshwater lakes and ditches. It can alter aquatic ecosystems and biodiversity substantially.

Section Rhizosperma

• Azolla imbricata
• Azolla nilotica Decne. ex Mett.
• Azolla pinnata R.Br.

Section Azolla

 

Drawing of Azolla filiculoides, about 5 mm. Upper green leaves perform photosynthesis, lower lack chlorophyll.

• Azolla cristata Kaulf. (this name takes priority over Azolla caroliniana Willd.)
• Azolla filiculoides Lam.
• Azolla rubra R.Br.

Sources:

At least six extinct species are known from the fossil record:

• Azolla intertrappea Sahni & H.S. Rao, 1934 (Eocene, India)
• Azolla berryi Brown, 1934 (Eocene, Green River Formation, Wyoming)
• Azolla prisca Chandler & Reid, 1926 (Oligocene, London Clay, Isle of Wight)
• Azolla tertiaria Berry, 1927 (Pliocene, Esmeralda Formation, Nevada)
• Azolla primaeva (Penhallow) Arnold, 1955 (Eocene, Allenby Formation, British Columbia)
• Azolla boliviensis Vajda & McLoughlin, 2005 (Maastrichtian - Paleocene, Eslaboacuten Formation and Flora Formation Bolivia)

Azolla - Wikipedia

https://youtu.be/M-PdfK7V29U