Jump to content

Nymphaea novogranatensis

From Wikipedia, the free encyclopedia

Nymphaea novogranatensis
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Nymphaea
Species:
N. novogranatensis
Binomial name
Nymphaea novogranatensis
Wiersema[1]

Nymphaea novogranatensis is a species of waterlily native to Colombia, Mexico, and Venezuela.[1]

Description

[edit]

Vegetative characteristics

[edit]

Nymphaea novogranatensis is an aquatic herb[2] with ovoid rhizomes, which are stoloniferous in the initial growth phase. The broadly elliptic-ovate to suborbicular, subcoriaceous to skin-like, 24 cm long and 21 cm wide leaves have a green adaxial surface. Purple spotting occurs on younger foliage. The brownish purple abaxial leaf surface may also feature dark spotting.[3] The glabrous, 5 mm wide petioles have 2-4 primary and 6-8 secondary air canals.[4]

Generative characteristics

[edit]

The nocturnal flowers either float on the water surface, or are slightly emergent.[4] They are attached to the glabrous, 7.5 mm wide peduncle with 5, 6, 15, or 18 primary air canals.[3]

The flowers are slightly fragrant.[3]

Cytology

[edit]

The diploid chromosome count is 2n = 28.[5]

Reproduction

[edit]

Vegetative reproduction

[edit]

The rhizomes of Nymphaea novogranatensis are stoloniferous in the initial growth phase. Proliferating pseudanthia are absent.[3]

Generative reproduction

[edit]

Nymphaea novogranatensis depends on sexual reproduction. Contrary to other Nymphaea species, autogamous seed production is less fruitful. Therefore, it is more reliant on cross-pollination.[3]

Taxonomy

[edit]

It was first described by Wiersema in 1984.[1]

Type specimen

[edit]

The type specimen of Nymphaea novogranatensis was collected by from a small depression along the road by Wiersema and González in Guarico, Venezuela on the 31st of August 1981.[3]

Placement within Nymphaea

[edit]

It is placed in Nymphaea subg. Hydrocallis. It is closely related to Nymphaea tenuinervia.[3]

Etymology

[edit]

The specific epithet novogranatensis is a demonym for Colombia, formerly called Nueva Granada.[6][7]

Conservation

[edit]

In Mexico, it is threatened with extinction.[8][9] Nymphaea novogranatensis is vulnerable to habitat loss resulting from human activities.[10]

Ecology

[edit]

Habitat

[edit]

In Mexico, Nymphaea novogranatensis grows in temporary puddles found in low, open regions of thorny scrublands dominated by Parkinsonia aculeata. It occurs sympatrically with Nymphaea amazonum, Nymphaea jamesoniana, and Nymphaea pulchella.[10] It also occurs in flooded savannahs, lagoons, and puddles.[2] It has a disjunct distribution.[11]

Pollination

[edit]

Nymphaea novogranatensis is pollinated by beetles.[2]

References

[edit]
  1. ^ a b c "Nymphaea novogranatensis Wiersema". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 25 December 2023.
  2. ^ a b c Madriñán, S., Rial, A., Bedoya, A. M., Fernández, M. (2017). "Plantas acuáticas de la Orinoquia colombiana." p. 32. Kolumbien: Universidad de los Andes.
  3. ^ a b c d e f g Wiersema, J. H. (1987). A monograph of Nymphaea subgenus Hydrocallis (Nymphaeaceae). Systematic Botany Monographs, 1-112.
  4. ^ a b 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
  5. ^ 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.
  6. ^ Fernández Casas, F. J. (2016). The genus Spigelia Linnaeus (1753). The origin of its scientific names. Biblioteca Digital. https://bibdigital.rjb.csic.es/idurl/1/1526302
  7. ^ Mazza, G. (2018, September 17). Erythroxylum novogranatense. Monaco Nature Encyclopedia. Retrieved December 25, 2023, from https://www.monaconatureencyclopedia.com/erythroxylum-novogranatense/?lang=en
  8. ^ Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO). (n.d.). Ninfa del Istmo (Nymphaea novogranatensis). EncicloVida. Retrieved December 25, 2023, from https://enciclovida.mx/especies/166042-nymphaea-novogranatensis
  9. ^ MODIFICACIÓN del Anexo Normativo III, Lista de especies en riesgo de la Norma Oficial Mexicana NOM-059-SEMARNAT-2010, Protección ambiental-Especies nativas de México de flora y fauna silvestres-Categorías de riesgo y especificaciones para su inclusión, exclusión o cambio-Lista de especies en riesgo, publicada el 30 de diciembre de 2010. (2010, December 30). Diario Oficial De La Federación. Retrieved December 25, 2023, from https://www.dof.gob.mx/nota_detalle.php?codigo=5578808&fecha=14/11/2019
  10. ^ a b Alejandro Novelo, R., & Wiersema, J. H. (2000). "Three new records of aquatic vascular plants in Mexico." Acta Botanica Mexicana, (51), 53-60.
  11. ^ Mora-Olivo, A., Villaseñor, J. L., & Martínez, M. (2013). "Las plantas vasculares acuáticas estrictas y su conservación en México." Acta botánica mexicana, (103), 27-63.