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Mayaca fluviatilis

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Bog moss
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Mayacaceae
Genus: Mayaca
Species:
M. fluviatilis
Binomial name
Mayaca fluviatilis
Aubl., 1775

Mayaca fluviatilis, also known as bog moss, is a perennial herbaceous submerged plant in the monogeneric family Mayacaceae. It is native to Central and South America, the Caribbean, and the United States where it is often sold as an aquarium plant. Through the aquatic plant trade, it has recently become naturalized in Sri Lanka, Singapore, and China. It has been identified in three locations in Australia (Innisfail and Mossman in Queensland and Taree in New South Wales) but more populations are likely in other parts of Australia as well.[1][2]

Description

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The species was first described by the French botanist Jean Baptiste Christophore Fusée Aublet as La mayaque des rivieres in a tributary of the Sinnamary river in Guyana.[3]

Mayaca fluviatilis has soft thin leaves arranged in spirals on white or pale green stems which frequently grow up to one meter in length. Flowers grow on single stalks, 2 to 5 cm long, and are roughly 1 cm in diameter. The flowers of Mayaca fluviatilis, like those of other Mayaca species, are lateral, heterochlamydeous (dissimilar sepals and petals in the whorls of the perianth), and isostemonous (has an equal number of stamens and petals).[4] As a submerged plant, it is capable of growing in wet soil during the dry seasons. When submerged, it superficially resembles Hydrilla verticillata, a native aquatic plant of Sri Lanka.

As an invasive species

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Seeds are dispersed through the water, although specimens sold as aquarium plants are purported to be sterile. Stem fragments as small as 2 cm are capable of re-establishing new plants. When growing submerged Mayaca fluviatilis can form semi-floating mats in water up to 2 meters deep or as a semi-terrestrial plant in quasi-aquatic environments such as wetlands. Uncontrolled, these mats can block drains and irrigation channels, among other consequences. If the mats break free during flooding they are a risk to moored boats as well as bridges.[5] There is also concern of Mayaca fluviatilis in Sri Lanka outcompeting endemic plants in already threatened habitats.[6]

Hydrilla verticillata has been shown to outcompete Mayaca fluviatilis in experimental settings and may be useful as a way of controlling invasive growth.[7]

References

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  1. ^ Yakandawala, K.; Dissanayake, D. M. G. S. (1 November 2010). "Mayaca fluviatilis Aubl.: an ornamental aquatic with invasive potential in Sri Lanka". Hydrobiologia. 656 (1): 199–204. doi:10.1007/s10750-010-0429-y. ISSN 1573-5117. S2CID 21313206.
  2. ^ SU, FAN; GUO, YA-NAN; ZHOU, XIN-XIN; WANG, RUI-JIANG (4 June 2020). "

    Mayacaceae, a newly naturalized family for the Flora of China

    "
    . Phytotaxa. 447 (1): 77–80. doi:10.11646/phytotaxa.447.1.9. ISSN 1179-3163. S2CID 219913912.
  3. ^ Aublet, Fusée (1775). Histoire des plantes de la Guiane Françoise : rangées suivant la méthode sexuelle, avec plusieurs mémoires sur différens objects intéressans, relatifs à la culture & au commerce de la Guiane Françoise, & une notice des plantes de l'Isle-de-France ... Vol. 1. Londres: P. F. Didot jeune.
  4. ^ Oriani, Aline; Scatena, Vera L. (1 August 2019). "Floral organogenesis and vasculature in Mayacaceae, an enigmatic family of Poales". Plant Systematics and Evolution. 305 (7): 549–562. doi:10.1007/s00606-019-01592-4. ISSN 2199-6881. S2CID 195354169.
  5. ^ "Herbicide control of submerged bog moss (Mayaca fluviatilis Aubl.)". www.cabi.org. 2012. Retrieved 27 September 2021.
  6. ^ Yakandawala, Deepthi; Yakandawala, Kapila (24 August 2011). "Hybridization between native and invasive alien plants: an overlooked threat to the biodiversity of Sri Lanka". Ceylon Journal of Science (Biological Sciences). 40 (1): 13–23. doi:10.4038/cjsbs.v40i1.3403.
  7. ^ Chathurangani, D.; Yakandawala, K.; Yakandawala, D. (4 July 2016). "A Study on competition between Hydrilla verticillata and Mayaca fluviatilis". Journal of Environmental Professionals Sri Lanka. 5 (1): 11–22. doi:10.4038/jepsl.v5i1.7865.