Nymphaea oxypetala

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Nymphaea oxypetala
The waterlilies (Plate 25) (7060883535).jpg
Botanical illustration of Nymphaea oxypetala
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Nymphaea
Subgenus: Nymphaea subg. Hydrocallis
Species:
N. oxypetala
Binomial name
Nymphaea oxypetala
Planch. [1]
Synonyms [1]
  • Leuconymphaea oxypetala (Planch.) Kuntze
  • Nymphaea raja Lehm.

Nymphaea oxypetala is a species of waterlily native to Bolivia, Brazil, Cuba, Ecuador, Paraguay, and Venezuela. [1] It is a remarkable species with excessively acuminate and acute sepals and petals. [2]

Contents

Description

Flowering Nymphaea oxypetala in Rio Vira Sebo, Brazil Nymphaea oxypetala in situ.jpg
Flowering Nymphaea oxypetala in Rio Vira Sebo, Brazil

Vegetative characteristics

Two dormant subglobose Nymphaea oxypetala Planch. rhizomes with scale bar (2 cm) against a white background Nymphaea oxypetala Planch. rhizomes.jpg
Two dormant subglobose Nymphaea oxypetala Planch. rhizomes with scale bar (2 cm) against a white background
Sprouting Nymphaea oxypetala Planch. rhizome with scale bar (3 cm) against a white background Sprouting Nymphaea oxypetala Planch. rhizome.jpg
Sprouting Nymphaea oxypetala Planch. rhizome with scale bar (3 cm) against a white background

Unlike most other waterlilies, this species rarely produces floating leaves. The strongly reduced floating leaves are only produced very rarely. [3] The smaller floating leaves are up to 6 cm large. The purplish-green, submerged, saggitate, membranous leaves are significantly larger with up to 30 cm big leaf blades. [4] The broad submerged leaves display a likeness to the leaves of lettuce. [5] The petioles are fragile and leaves break of easily. [3]

Generative characteristics

The nocturnal flowers float on the water surface. [3] The stamens are purple. The cream-coloured, 2 cm long carpellary appendages are abruptly folded at the apex. [4] They are the longest carpellary appendages of all Nymphaea species. [3] The floral fragrance has been described as ether-like. [6]

Cytology

The chromosome count of this polyploid species is 6n = 84. [7]

Reproduction

Vegetative reproduction

This species is likely not stoloniferous. [6] Proliferating pseudanthia are also lacking in Nymphaea oxypetala. [8] [9]

Generative reproduction

Flowering occurs throughout March to August. [4]

Ecology

Habitat

It is associated with lotic habitats, [10] These aquatic habitats are defined by the presence of moving water. [11] It occurs in floodplains, river branches and in seasonal streams. [12] In the Pantanal it occurs in the flooding area of the Paraguay River, Nabileque, Abobral and Poconé. [4] In the Bolivian Pantanal, Nymphaea oxypetala was observed growing at depths of up to 2 m in gaps amid mats of floating vegetation and in localities where human activities prevented the growth of such floating mats along the margins. [3]

Taxonomy

Type specimen

The type specimen was collected by W. Jameson in March 1845 in Ecuador near Guayaquil. [6] [9]

Placement within Nymphaea

It is placed within Nymphaea subg. Hydrocallis. [13]

Etymology

The specific epithet oxypetala refers to the pointed petals of this species. [4]

Conservation

The conservation status in Brazil is not evaluated (NE). [8]

Cultivation

It is kept as an aquarium plant, as well as in small containers of water. [14] It is intolerant of cold, turbid and saline water and favours clear, slowly flowing freshwater. [6]

Related Research Articles

<i>Nymphaea</i> Genus of aquatic plants

Nymphaea is a genus of hardy and tender aquatic plants in the family Nymphaeaceae. The genus has a cosmopolitan distribution. Many species are cultivated as ornamental plants, and many cultivars have been bred. Some taxa occur as introduced species where they are not native, and some are weeds. Plants of the genus are known commonly as water lilies, or waterlilies in the United Kingdom. The genus name is from the Greek νυμφαία, nymphaia and the Latin nymphaea, which means "water lily" and were inspired by the nymphs of Greek and Latin mythology.

<i>Nymphaea glandulifera</i> Species of water lily

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<i>Nymphaea prolifera</i> Species of water lily

Nymphaea prolifera is a species of waterlily naturally found from Mexico to Brazil and northeastern Argentina. Additionally, it has been reported to occur in Uruguay.

<i>Nymphaea gardneriana</i> Species of water lily

Nymphaea gardneriana is a species of waterlily native to Cuba and tropical South America.

<i>Nymphaea potamophila</i> Species of water lily

Nymphaea potamophila is a species of waterlily native to the region spanning from Venezuela to northern Brazil. Additionally, it has been reported to occur in Colombia.

<i>Nymphaea rudgeana</i> Species of water lily

Nymphaea rudgeana is a species of waterlily native to the region spanning from Mexico to tropical South America.

Nymphaea tenuinervia is a species of waterlily native to Colombia, Guyana and Brazil.

<i>Nymphaea jamesoniana</i> Species of water lily

Nymphaea jamesoniana is a species of waterlily native to the USA, Mexico, and tropical South America.

Nymphaea belophylla is a species of waterlily native to Bolivia, Brazil and Venezuela.

<i>Nymphaea amazonum</i> Species of water lily

Nymphaea amazonum is a species of water lily native to the region spanning from Mexico to tropical South America. It has been introduced to Bangladesh.

Nymphaea conardii is a species of waterlily native to the region spanning from Southern Mexico to tropical South America.

<i>Nymphaea lasiophylla</i> Species of water lily

Nymphaea lasiophylla is a species of waterlily native to East Brazil. It has also been introduced to the Venezuelan Antilles.

Nymphaea pedersenii is a species of waterlily native to Argentina, Bolivia, Brazil, and Uruguay.

Nymphaea lingulata is a species of waterlily native to Bolivia, Brazil, and Paraguay.

Nymphaea novogranatensis is a species of waterlily native to Colombia, Mexico, and Venezuela.

<i>Nymphaea gracilis</i> Species of water lily

Nymphaea gracilis is a species of waterlily endemic to Mexico. It is the only species of its genus which is endemic to Mexico.

<i>Nymphaea loriana</i> Species of water lily

Nymphaea loriana is a species of waterlily endemic to Manitoba, and Saskatchewan, Canada.

<i>Nymphaea <span style="font-style:normal;">subg.</span> Hydrocallis</i> Subgenus of flowering plants

Nymphaea subg. Hydrocallis is a subgenus of the genus Nymphaea.

<i>Nymphaea <span style="font-style:normal;">subg.</span> Brachyceras</i> Subgenus of flowering plants

Nymphaea subg. Brachyceras is a subgenus of the genus Nymphaea.

<i>Nymphaea <span style="font-style:normal;">subg.</span> Anecphya</i> Subgenus of flowering plants

Nymphaea subg. Anecphya is a subgenus of the genus Nymphaea.

References

  1. 1 2 3 "Nymphaea oxypetala Planch". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 12 November 2023.
  2. ↑ "Flore des Serres et des Jardins de l'Europe 8: 120." 1853. (Mar 1853)
  3. 1 2 3 4 5 Ritter, N. P., Crow, G. E., & Wiersema, J. H. (2001). "Nymphaea (Nymphaeaceae) in Bolivia: notes on several species, three new country records, and a key to species." Rhodora, 103(915), 326-331.
  4. 1 2 3 4 5 Pott, V. J. (1998). "The Nymphaeaceae family in the Pantanal, Mato Grosso and Mato Grosso do Sul, Brazil." Acta Botanica Brasilica, 12, 183-194.
  5. ↑ Del Claro, K., Oliveira, P. S., & Rico-Gray, V. (2009). Tropical Biology and Conservation Management - Volume I: Natural History of Tropical Plants. p. 105. EOLSS Publications. https://books.google.com/books?id=oSDXCwAAQBAJ&dq=nymphaea%20oxypetala&pg=PA105
  6. 1 2 3 4 Wiersema, J. H. (1987). A monograph of Nymphaea subgenus Hydrocallis (Nymphaeaceae). Systematic Botany Monographs, 1-112.
  7. ↑ Loehne, C., Borsch, T., & Wiersema, J. H. (2007). "Phylogenetic analysis of Nymphaeales using fast-evolving and noncoding chloroplast markers." Botanical Journal of the Linnean Society, 154(2), 141-163.
  8. 1 2 Pellegrini, M. O. O. & Jardim Botânico do Rio de Janeiro. (n.d.). Nymphaea oxypetala Planch. Flora E Funga Do Brasil. Retrieved November 24, 2023, from https://floradobrasil.jbrj.gov.br/FB118426
  9. 1 2 Lima, C. T. de, Machado, I. C., & Giulietti, A. M. (2021). "Nymphaeaceae do Brasil." SITIENTIBUS série Ciências Biológicas, 21. https://doi.org/10.13102/scb4986
  10. ↑ Pott, V. J., Pott, A., Lima, L. C. P., Moreira, S. N., & Oliveira, A. K. (2011). "Aquatic macrophyte diversity of the Pantanal wetland and upper basin." Brazilian Journal of Biology, 71, 255-263.
  11. ↑ Reinbold, Joan. (2023, November 13). Lentic & Lotic Ecosystems. sciencing.com. Retrieved from https://sciencing.com/lentic-lotic-ecosystems-7355077.html
  12. ↑ Damasceno-Junior, G. A., & Pott, A. (2022). Flora and vegetation of the Pantanal Wetland. p. 241. Springer Nature. https://books.google.com/books?id=ZiFnEAAAQBAJ&dq=nymphaea%20oxypetala&pg=PA241
  13. ↑ de Andrade Amador, G., Damasceno-Júnior, G. A., da Silva, R. H., Pott, A., & Pott, V. J. (2013). "Nymphaeaceae, Nymphaea belophylla Trickett: new state record." Check List, 9(2), 440-442.
  14. ↑ Breukel, H. (n.d.). Nymphaea oxypetala Planchon. Seerosenforum.de Das Portal Der Seerose. Retrieved November 12, 2023, from https://www.seerosenforum.de/gattung/Hydrocallis/oxypetala/oxypetala.aspx
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