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Nymphaea conardii

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Species of water lily

Nymphaea conardii
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Nymphaea
Subgenus: Nymphaea subg. Hydrocallis
Species: N. conardii
Binomial name
Nymphaea conardii
Wiersema

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

Description

Vegetative characteristics

Nymphaea conardii is an aquatic herb with ovoid, 4.5 cm wide rhizomes. The ovate-elliptical leaf blade is uniformly green, and it can reach up to 18 cm in length and 14 cm in width. The leaf venation is reticulate and dichotomous, with 9-15 primary veins. The leaf blade is attached to glabrous, max. 4 mm wide petioles with 2-4 primary and 4-6 secondary air canals.

Generative characteristics

The nocturnal flowers float on the water surface. The flowers have glabrous, non-brittle green peduncles with 5-6 primary, central air canals and 10-12 secondary, smaller, peripheral canals. The flowers have uniformly green, 3-6 cm long and 1-3 cm wide, oblong-ovate sepals with an slightly rounded or acute apex. The fruits are 1.5-1.7 cm long and 2.5-2.9 cm wide. The granulose, pilose, ellipsoid seeds have trichomes arranged in interrupted, longitudinal lines. The trichomes are 10–60 μm long.

Cytology

The diploid chromosome count is 2n = 28.

Reproduction

Vegetative reproduction

It is stoloniferous, but only in a brief period in which the tubers resume growth. Proliferating pseudanthia are absent.

Generative reproduction

Autogamy is possible, as the stigma retains its female function in the second day, when the pollen is released, thus enabling self-fertilization. The seed dispersal is hydrochorous (i.e. water-dispersed) or ornithochorous (i.e. bird-dispersed).

Taxonomy

Publication

It was first described by Wiersema in 1984.

Type specimen

The type specimen was collected on the 29th of August 1981 by J.H. Wiersema and A. Gonzalez from a pond in the Sosa Municipality of Barinas, Venezuela.

Placement within Nymphaea

It is placed in Nymphaea subg. Hydrocallis. It is closely related to Nymphaea gardneriana, Nymphaea glandulifera, and Nymphaea jamesoniana.

Etymology

The specific epithet conardii honours the botanist Henry Shoemaker Conard (1874 - 1971).

Conservation

Nymphaea conardii is considered to be vulnerable (VU) in Cuba.

Ecology

Habitat

It inhabits flooded savannas, shallow lagoons, and Morichales associated with still water (i.e. wetlands characterized by the presence of the moriche palm Mauritia flexuosa) at elevations of 0-200 m above sea level. It is also found in ponds and temporary ditches.

Pollination

It is pollinated by beetles.

References

  1. ^ "Nymphaea conardii Wiersema". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 15 December 2023.
  2. ^ Pellegrini, M. O. O. & Jardim Botânico do Rio de Janeiro. (n.d.). Nymphaea conardii Wiersema. Flora E Funga Do Brasil. Retrieved December 15, 2023, from https://floradobrasil.jbrj.gov.br/FB10940
  3. ^ Velásquez, J. (1994). "Plantas acuáticas vasculares de Venezuela." p. 102. Venezuela: Universidad Central de Venezuela, Consejo de Desarrollo Científico y Humanistico.
  4. ^ de Lima, C. T., Machado, I. C., & Giulietti, A. M. (2021). "Nymphaeaceae of Brasil." Sitientibus série Ciências Biológicas, 21.
  5. ^ Wiersema, J. H. (1987). A Monograph of Nymphaea Subgenus Hydrocallis (Nymphaeaceae). Systematic Botany Monographs, 16, 1–112. https://doi.org/10.2307/25027681
  6. ^ Bonilla-Barbosa, J., Novelo, A., Orozco, Y. H., & Márquez-Guzmán, J. (2000). "Comparative seed morphology of Mexican Nymphaea species." Aquatic Botany, 68(3), 189-204.
  7. ^ Wiersema, J. H. (1984). Systematics of Nymphaea subgenus Hydrocallis (Nymphaeaceae). I. Four New Species from the Neotropics. Brittonia, 36(3), 213–222. https://doi.org/10.2307/2806510
  8. Wiersema, J. H. (1988). Reproductive Biology of Nymphaea (Nymphaeaceae). Annals of the Missouri Botanical Garden, 75(3), 795–804. https://doi.org/10.2307/2399367
  9. ^ Madriñán, S., Rial, A., Bedoya, A. M., Fernández, M. (2017). "Plantas acuáticas de la Orinoquia colombiana." p. 28. Kolumbien: Universidad de los Andes.
  10. Nymphaea conardii | International Plant Names Index. (n.d.). Retrieved December 15, 2023, from https://www.ipni.org/n/281432-2
  11. Borsch, T., Hilu, K. W., Wiersema, J. H., Löhne, C., Barthlott, W., & Wilde, V. (2007). Phylogeny of Nymphaea (Nymphaeaceae): Evidence from Substitutions and Microstructural Changes in the Chloroplast trnT‐trnF Region. International Journal of Plant Sciences, 168(5), 639–671. https://doi.org/10.1086/513476
  12. Urquiola Cruz, A. J., González-Oliva, L., Novo Carbó, R. (2010). "Libro rojo de la flora vascular de la provincia Pinar del Río." p. 447. Spanien: Universidad de Alicante.
Taxon identifiers
Nymphaea conardii
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