Biology:Nymphaea tenuinervia
| Nymphaea tenuinervia | |
|---|---|
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Order: | Nymphaeales |
| Family: | Nymphaeaceae |
| Genus: | Nymphaea |
| Species: | N. tenuinervia
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| Binomial name | |
| Nymphaea tenuinervia Casp.[1]
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| Synonyms[1] | |
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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
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 subgenus 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
- ↑ 1.0 1.1 1.2 "Nymphaea tenuinervia Casp." (in en). Royal Botanic Gardens, Kew. http://www.plantsoftheworldonline.org/taxon/281445-2. Retrieved 28 November 2023.
- ↑ 2.0 2.1 2.2 2.3 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
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Wiersema, J. H. (1987). A monograph of Nymphaea subgenus Hydrocallis (Nymphaeaceae). Systematic Botany Monographs, 1-112.
- ↑ 4.0 4.1 Henkel, F. (1907). "Das Buch Der Nymphaeaceen Oder Seerosengewächse" Von Fr. Henkel, F. Hehnelt und L. Dittmann. pp. 76-77. Deutschland: Friedrich Henkel.
- ↑ 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.
- ↑ Sousa, D. J. L. D., & Matias, L. Q. (2013). "A família Nymphaeaceae no estado do Ceará, Brasil." Rodriguésia, 64, 49-59.
- ↑ 7.0 7.1 7.2 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.
- ↑ 8.0 8.1 8.2 de Lima, C. T., Machado, I. C., & Giulietti, A. M. (2021). "Nymphaeaceae of Brasil." Sitientibus série Ciências Biológicas, 21.
- ↑ 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.
- ↑ 10.0 10.1 Nymphaea tenuinervia | International Plant Names Index. (n.d.). Retrieved December 1, 2023, from https://www.ipni.org/n/605722-1
- ↑ Conard, H. S. (2015). The Waterlilies: A Monograph of the Genus Nymphaea (Classic Reprint). p. 210. USA: FB&C Limited.
- ↑ Nymphaea tenerinervia | International Plant Names Index. (n.d.-b). Retrieved December 1, 2023, from https://www.ipni.org/n/281445-2
- ↑ 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
- ↑ 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
Wikidata ☰ Q17253224 entry
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