Salviniaceae Explained

Salviniaceae,^{[1] [2]} is a family of heterosporous ferns in the order Salviniales. The Salviniaceae contain the two genera Azolla and Salvinia, with about 20 known species in total.^[3] The oldest records of the family date to the Late Cretaceous.^[4] Azolla was previously placed in its own family, Azollaceae, but research has shown Azolla and Salvinia to be sister genera with the likely phylogenic relationship shown in the following diagram.

Notes and References

1. Book: The Chambers Dictionary. Chambers. 2003. 0-550-10105-5. 9th. Salvinia.
2. 2022-05-08.
3. Christenhusz, M. J. M. . Byng, J. W. . amp . 2016 . The number of known plants species in the world and its annual increase . Phytotaxa . 261 . 201–217 . 10.11646/phytotaxa.261.3.1 . 3 . Magnolia Press . free .
4. De Benedetti . Facundo . Zamaloa . María C. . Gandolfo . María A. . Cúneo . Néstor R. . 2021-12-01 . The South American and Antarctic Peninsula fossil record of Salviniales (water ferns): Its implication for understanding their evolution and past distribution . Review of Palaeobotany and Palynology . en . 295 . 104521 . 10.1016/j.revpalbo.2021.104521 . 0034-6667. free .