Regnellidium

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Regnellidium
Regnellidium diphyllum.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Salviniales
Family: Marsileaceae
Genus: Regnellidium
Lindm.
Species

Regnellidium diphyllum Lindm.
Regnellidium upatoiensis

Regnellidium is a monotypic genus of ferns of family Marsileaceae. [1]

The single living species, Regnellidium diphyllum, the two-leaf water fern, is native to southeastern Brazil and adjacent regions of Argentina. It resembles its relatives from the genus Marsilea , but has 2-lobed leaves (rather than 4). This fern is sometimes grown in aquaria.

A fossil assigned to the species Regnellidium upatoiensis has been found in Cretaceous deposits of the eastern United States. [2]

The genus name of Regnellidium is in honour of Anders Fredrik Regnell (1807–1884), a Swedish physician and botanist. [3] It was first described and published in Ark. Bot. Vol.3 (Issue 6) on page 2 in 1904. [1]

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References

  1. 1 2 "Regnellidium Lindm. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 3 November 2021.
  2. Lupia, R.; Schneider, H.; Moeser, G. M.; Pryer, K. M.; Crane, P. R. (2000). "Marsileaceae Sporocarps and Spores from the Late Cretaceous of Georgia, U.S.A". International Journal of Plant Sciences. 161 (6): 975–988. doi:10.1086/317567. S2CID   16981770.
  3. Burkhardt, Lotte (2018). Verzeichnis eponymischer Pflanzennamen – Erweiterte Edition [Index of Eponymic Plant Names – Extended Edition](pdf) (in German). Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2018. ISBN   978-3-946292-26-5 . Retrieved 1 January 2021.

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