Nymphaeaceae

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Nymphaeaceae
Temporal range: 130–0 
Ma
Early Cretaceous - Recent
Nymphaea nouchali
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Salisb.[1]
Genera

Extant genera[2]

Fossil genera

Synonyms[3]
  • Barclayaceae
  • Euryalaceae
  • Nupharaceae
  • Nympheaceae
Flowering Barclaya longifolia specimen, Thailand
Flower of Victoria cruziana, Santa Cruz water lily
Flowering Euryale ferox specimen cultivated in the Botanischer Garten Berlin-Dahlem, Germany
Flowering and fruiting Nuphar variegata specimen

Nymphaeaceae (

leaves and flowers floating on or rising from the surface. Leaves are round, with a radial notch in Nymphaea and Nuphar, but fully circular in Victoria and Euryale
.

Water lilies are a well-studied family of plants because their large flowers with multiple unspecialized parts were initially considered to represent the floral pattern of the earliest flowering plants. Later genetic studies confirmed their evolutionary position as

Thus, the large number of relatively unspecialized floral organs in the Nymphaeaceae is not an ancestral condition for the clade.

Description

The Nymphaeaceae are aquatic,

rhizomatous herbs.[7] The family is further characterized by scattered vascular bundles in the stems, and frequent presence of latex, usually with distinct, stellate-branched sclereids projecting into the air canals. Hairs are simple, usually producing mucilage
(slime).

Leaves are alternate and spiral, opposite or occasionally whorled, simple,

peltate or nearly so, entire to toothed or dissected, short to long petiolate, with blade submerged, floating or emergent, with palmate to pinnate venation.[7] Stipules are either present or absent. Surface leaves are absent during winter, and therefore the gases in the rhizome lacunae access equilibrium with the gases of the sediment water.[citation needed] The leftover of internal pressure is embodied by the constant streams of bubbles that outbreak when rising leaves are ruptured in the spring.[citation needed][clarification needed
]

Flowers

Flowers are solitary, bisexual, radial, with a long pedicel and usually floating or raised above the surface of the water, with girdling vascular bundles in

protogynous and primarily cross-pollinated, but because male and female stages overlap during the second day of flowering, and because it is self-compatible, self-fertilization is possible.[10] Female and male parts of the flower are usually active at different times, to facilitate cross-pollination, although this is just one of several reproductive strategies used by these plants.[11]

There are 4–12

Carpels are 3 to numerous, distinct or connate.[citation needed
]

Fruit

The fruit is an aggregate of nuts, a berry, or an irregularly dehiscent fleshy spongy capsule.[7] Seeds are often arillate, more or less lacking endosperm.

Taxonomy

Water lilies in Ontario, Canada

Nymphaeaceae has been investigated systematically for decades because botanists considered their floral morphology to represent one of the earliest groups of

angiosperms.[6] Modern genetic analyses by the Angiosperm Phylogeny Group researchers has confirmed its basal position among flowering plants.[1][12][13][14] In addition, the Nymphaeaceae are more genetically diverse and geographically dispersed than other basal angiosperms.[15][16] Nymphaeaceae is placed in the order Nymphaeales, which is the second diverging group of angiosperms after Amborella in the most widely accepted flowering plant classification system, APG IV system.[12][13][14]

Nymphaeaceae

Nymphaeaceae is a small family of three to six genera:

petals) arising from the top of the ovary and by stamens that are joined in the base. However, molecular phylogenetic work includes it in Nymphaeaceae.[17] The genus Ondinea has recently been shown to be a morphologically aberrant species of Nymphaea, and is now included in this genus.[18] The genera Euryale, of far east Asia, and Victoria, from South America, are closely related despite their geographic distance, but their relationship toward Nymphaea need further studies.[19][20][21]

The

eudicot in its own family Nelumbonaceae of the order Proteales
.

Fossils

Several fossil species are known, including

Allenbya from the Ypresian of British Columbia,[22] Notonuphar from the Eocene of Antarctica,[23][24] Nuphaea from the Eocene of Germany,[25] and Susiea from the Late Paleocene Almont Flora of North Dakota, USA.[26]

As an invasive species

The beautiful nature of water lilies has led to their widespread use as

Mexican waterlily, native to the Gulf Coast of North America, is planted throughout the continent. It has escaped from cultivation and become invasive in some areas, such as California's San Joaquin Valley. It can infest slow-moving bodies of water and is difficult to eradicate. Populations can be controlled by cutting top growth. Herbicides can also be used to control populations using glyphosate and fluridone.[27]

Culture

Shapla Square in Dhaka, main financial hub of Bangladesh

The

Emblem of Bangladesh
contains a lily floating on water. It is also the birth flower for the month of July.

The Nymphaeaceae, which is also called (Nilufar Abi in Persian), can be seen in many reliefs of the Achaemenid period (552 BC) such as the statue of

Solar Hijri Calendar
.

Lily pads, also known as Seeblätter, are a charge in Northern European heraldry, often coloured red (gules), and appear on the flag of Friesland and the coat of arms of Denmark (in the latter case often replaced by red hearts).

The water lily has a special place in Sangam literature and Tamil poetics, where it is considered symbolic of the grief of separation; it is considered to evoke imagery of the sunset, the seashore, and the shark.

Heraldry

In visual arts

Water lilies were depicted by the

series of paintings
.

The Maya

Maya iconography with Water lilies

The main job of the

dams and channels to capture and store rainwater. With their knowledge of the wetland biosphere, they transformed artificial reservoirs into wetland biospheres. One way that they tested whether the water systems were working properly was if the Nymphaeaceae were thriving. Water lilies became a visual sign of water cleanliness, so the Maya elite began to associate themselves with the flowers.[28]

The Maya began to use water lily iconography depicted on

hieroglyphic writing.[29] Even in Maya settlements like Palenque, where the main water supplies were springs and flowing streams (places water lilies can not grow), the flowers were prevalent in their iconographic records. Aristocrats and religious figures wore masks and/or headdresses during celebratory events that had water lilies and/or water lily symbols to appear like gods.[30] There is also evidence that water lilies were used as cultural entheogenic. Some interpretations of ritual scenes drawn out by the Maya have been blood being extracted from perforated body parts. However, more close examinations show that this is instead a liquid flowing directly from water lily flowers that were on the heads of certain gods.[30] It is likely that the Maya ingested these plants to create a non-ordinary state of consciousness, which makes sense because there is a class of opiate alkaloids in Nymphaeaceae.[30] Overall, these examples show just how important this specific form of water symbolism was throughout the Maya region.[31]

Gallery

  • Lily pads floating in a lake in Toronto, Canada
    Lily pads floating in a lake in Toronto, Canada
  • Lily pads floating on Matkusjoki River in Iisalmi, Finland
    Lily pads floating on Matkusjoki River in Iisalmi, Finland
  • Water lily at Sambalpur
    Water lily at Sambalpur
  • Water Lilies, 1920-1926, Musée de l'Orangerie
    Water Lilies, 1920-1926, Musée de l'Orangerie
  • Nuphar pumila 2014 in China
    Nuphar pumila 2014 in China
  • Time-lapse video of a water lily blooming
  • Water lily blooming in Sankarpur of West Bengal
    Water lily blooming in Sankarpur of West Bengal
  • Blue water lily of Bangladesh
    Blue water lily of Bangladesh
  • Yellow water lilies in Wales, 2021
    Yellow water lilies in Wales, 2021
  • Water lilies in Nairobi, Kenya
    Water lilies in Nairobi, Kenya

See also

References

  1. ^
  2. ^ "Nymphaeaceae Salisb". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 22 July 2023.
  3. ^ Nymphaeaceae. (n.d.). GBIF | Global Biodiversity Information Facility. Retrieved August 4, 2023, from https://www.gbif.org/species/103019924
  4. ^ "Nymphaeaceae Salisb. Ann. Bot. (König & Sims) 2: 70. 1805. (Jun 1805)". World Flora Online. The World Flora Online Consortium. 2022. Retrieved 13 July 2022.
  5. .
  6. ^ a b Phylogeny, Classification and Floral Evolution of Water Lilies (Nymphaeaceae; Nymphaeales): A Synthesis of Non-molecular, rbcL, matK, and 18S rDNA Data, Donald H. Les, Edward L. Schneider, Donald J. Padgett, Pamela S. Soltis, Douglas E. Soltis and Michael Zanis, Systematic Botany, Vol. 24, No. 1, 1999, pp. 28-46
  7. ^ a b c "Family: Nymphaeaceae (water-lily family): Go Botany". gobotany.nativeplanttrust.org. Retrieved 2021-05-07.
  8. S2CID 2037133
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  13. ^ a b As easy as APG III - Scientists revise the system of classifying flowering plants, The Linnean Society of London, 2009-10-08, retrieved 2009-10-29
  14. ^ a b APG III tidies up plant family tree, Horticulture Week, 2009-10-08, retrieved 2009-10-29
  15. ^ Mario Coiro & Maria Rosaria Barone Lumaga (2013): Aperture evolution in Nymphaeaceae: insights from a micromorphological and ultrastructural investigation, Grana, DOI:10.1080/00173134.2013.769626
  16. ^ Insights into the dynamics of genome size and chromosome evolution in the early diverging angiosperm lineage Nymphaeales (water lilies), Jaume Pellicer, Laura J Kelly, Carlos Magdalena, Ilia Leitch, 2013, Genome, 10.1139/gen-2013-0039
  17. Soltis PS
    , Soltis DE, Zanis M (1999) Phylogeny, classification and floral evolution of water lilies (Nymphaeaceae; Nymphaeales): a synthesis of non-molecular, rbcL, matK, and 18S rDNA data. Systematic Botany 24: 28–46.
  18. ^ Löhne C, Wiersema JH, Borsch T (2009) The unusual Ondinea, actually just another Australian water-lily of Nymphaea subg. Anecphya (Nymphaeaceae). Willdenowia 39: 55–58.
  19. ^ Löhne C, Borsch T, Wiersema JH (2007) Phylogenetic analysis of Nymphaeales using fast-evolving and noncoding chloroplast markers. Botanical Journal of the Linnean Society 154: 141–163.
  20. ^ Borsch T, Löhne C, Wiersema J (2008) Phylogeny and evolutionary patterns in Nymphaeales: integrating genes, genomes and morphology. Taxon 57: 1052–1081.
  21. ^ Dkhar J, Kumaria S, Rama Rao S, Tandon P (2012) Sequence characteristics and phylogenetic implications of the nrDNA internal transcribed spacers (ITS) in the genus Nymphaea with focus on some Indian representatives. Plant Systematics and Evolution 298: 93–108.
  22. S2CID 86651676
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  23. .
  24. .
  25. ^ Gee, C. T., & Taylor, D. W. (2019). "An Extinct Transitional Leaf Genus of Nymphaeaceae from the Eocene Lake at Messel, Germany: Nuphaea engelhardtii Gee et David W. Taylor gen. et sp. nov." International Journal of Plant Sciences, 180(7), 724-736.
  26. ^ Taylor, W., DeVore, M. L., & Pigg, K. B. (2006). "Susiea newsalemae gen. et sp. nov.(Nymphaeaceae): Euryale-like seeds from the Late Paleocene Almont Flora, North Dakota, USA." International Journal of Plant Sciences, 167(6), 1271-1278.
  27. ^ "Nyphaea genus". www.cdfa.ca.gov. Retrieved 2018-09-13.
  28. .
  29. .
  30. ^ .
  31. . Retrieved 28 April 2023.

Further reading

External links