Regnellidium – Chi Regnellidium

    Regnellidium - Chi Regnellidium Regnellidium aquaticum genus freshwater aquarium plants 600 x 600
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    Species from this Genus – Các cây trong Chi này:


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      (Redirected from Regnellidium diphyllum)
    Regnellidium diphyllum.jpg  Regnellidium - Chi Regnellidium 220px Regnellidium diphyllum
    Scientific classification
    Kingdom: Plantae
    Division: Pteridophyta
    Class: Polypodiopsida /
    Pteridopsida (disputed)
    Order: Salviniales
    Family: Marsileaceae
    Genus: Regnellidium
    Regnellidium diphyllum Lindm.
    Regnellidium upatoiensis

    Regnellidium is a monotypic genus of ferns of family Marsileaceae.

    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. It is the only non-flowering plant that produces latex.

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


    • 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.
    • Mabberley, D. J. (1997). The Plant-Book. Cambridge University Press.