Nymphaea tenuinervia

Nymphaea tenuinervia
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Nymphaea
Subgenus: Nymphaea subg. Hydrocallis
Species:
N. tenuinervia
Binomial name
Nymphaea tenuinervia
Casp.[1]
Synonyms[1]
  • Nymphaea pulchella Lehm. ex Casp.

Nymphaea tenuinervia is a species of waterlily native to Colombia, Guyana and Brazil.[1]

Description

Vegetative characteristics

Nymphaea tenuinervia is an aquatic herb.[2] The ovoid rhizome is stoloniferous throughout the vegetative period.[3] The heart-shaped to egg-shaped leaves have a firm texture and entire margins.[4] The leaf blade is 21 cm long and 19 cm wide.[3] The abaxial leaf surface features elongated round, small, black spots directed along their longitudinal axis toward the centre of the leaf blade. The petiole bears downward-facing trichomes towards its upper end.[4] The leaf bears characteristic bifurcated (Y-shaped) trichosclereids in the mesophyll layer of the leaf.[5][6]

Generative characteristics

Anisole is the primary component of the floral fragrance of Nymphaea tenuinervia[7]

Nymphaea tenuinervia has protogynous flowers with nocturnal anthesis.[8] The floral fragrance has been described as solvent-like. It is primarily composed of anisole, but also significantly smaller amounts of (methoxymethyl)benzene and butyl acetate.[7] The ovoid, granulose, pilose seeds feature trichomes arranged in continuous longitudinal lines.[2]

Cytology

The diploid chromosome count is 2n = 20.[3] It has 8 large and 12 smaller chromosomes.[9]

Reproduction

Vegetative reproduction

In most populations vegetative reproduction through stolons plays a significant role in reproduction.[3] Proliferating pseudanthia are absent.[2]

Generative reproduction

Autogamy was not observed in this species, therefore a reliance on out-crossing for generative reproduction is likely.[3][8]

Habitat

In Brasil, it occurs in the Amazon rainforest, the central Brazilian savanna, and the Atlantic rainforest as aquatic vegetation.[2]

Taxonomy

Type specimen

The type specimen was collected near Juazeiro in the St. Francisco river of Bahia, Brazil in April 1819.[10][11][3]

Placement within Nymphaea

It is a member of Nymphaea subg. Hydrocallis.[3][7]

Orthographic variants

In the original description it was first named Nymphaea tenuinervia. However, in other parts of the publication it is spelled as Nymphaea tenerinervia.[3][10] Nymphaea tenerinervia Casp. is an orthographical variant of Nymphaea tenuinervia Casp.[12]

Etymology

The specific epithet tenuinervia is composed of two parts. The first part tenui- means thin or slender, and -nervia means veins or nerves. Together it means fine-nerved.[13][14]

Ecology

Pollination

Scarabeid beetles are thought to be pollinators of Nymphaea tenuinervia.[8]

References

  1. ^ a b c "Nymphaea tenuinervia Casp". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 28 November 2023.
  2. ^ a b c d Pellegrini, M. O. O. & Jardim Botânico do Rio de Janeiro. (n.d.-c). Nymphaea tenerinervia Casp. Flora E Funga Do Brasil. Retrieved December 1, 2023, from https://floradobrasil.jbrj.gov.br/FB10950
  3. ^ a b c d e f g h Wiersema, J. H. (1987). A monograph of Nymphaea subgenus Hydrocallis (Nymphaeaceae). Systematic Botany Monographs, 1-112.
  4. ^ a b Henkel, F. (1907). "Das Buch Der Nymphaeaceen Oder Seerosengewächse" Von Fr. Henkel, F. Hehnelt und L. Dittmann. pp. 76-77. Deutschland: Friedrich Henkel.
  5. ^ de Sousa, D. J. L., & Matias, L. Q. (2012). "SINOPSE DO GÊNERO Nymphaea L.(Nymphaeaceae) NO ESTADO DO CEARÁ." Revista Caatinga, 25(3), 72-78.
  6. ^ Sousa, D. J. L. D., & Matias, L. Q. (2013). "A família Nymphaeaceae no estado do Ceará, Brasil." Rodriguésia, 64, 49-59.
  7. ^ a b c Maia, A. C. D., de Lima, C. T., Navarro, D. M. D. A. F., Chartier, M., Giulietti, A. M., & Machado, I. C. (2014). "The floral scents of Nymphaea subg. Hydrocallis (Nymphaeaceae), the New World night-blooming water lilies, and their relation with putative pollinators." Phytochemistry, 103, 67-75.
  8. ^ a b c de Lima, C. T., Machado, I. C., & Giulietti, A. M. (2021). "Nymphaeaceae of Brasil." Sitientibus série Ciências Biológicas, 21.
  9. ^ Pellicer, J., Kelly, L. J., Magdalena, C., & Leitch, I. J. (2013). "Insights into the dynamics of genome size and chromosome evolution in the early diverging angiosperm lineage Nymphaeales (water lilies)." Genome, 56(8), 437-449.
  10. ^ a b Nymphaea tenuinervia | International Plant Names Index. (n.d.). Retrieved December 1, 2023, from https://www.ipni.org/n/605722-1
  11. ^ Conard, H. S. (2015). The Waterlilies: A Monograph of the Genus Nymphaea (Classic Reprint). p. 210. USA: FB&C Limited.
  12. ^ Nymphaea tenerinervia | International Plant Names Index. (n.d.-b). Retrieved December 1, 2023, from https://www.ipni.org/n/281445-2
  13. ^ Eckel, P. M. & Missouri Botanical Garden. (n.d.). A Grammatical Dictionary of Botanical Latin. Retrieved January 1, 2024, from http://www.mobot.org/mobot/latindict/keyDetail.aspx?keyWord=nervis
  14. ^ Eckel, P. M. & Missouri Botanical Garden. (n.d.). A Grammatical Dictionary of Botanical Latin. Retrieved January 1, 2024, from http://www.mobot.org/mobot/latindict/keyDetail.aspx?keyWord=tenui