Biology:Nuphar × spenneriana
| Nuphar × spenneriana | |
|---|---|
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Order: | Nymphaeales |
| Family: | Nymphaeaceae |
| Genus: | Nuphar |
| Species: | N. × spenneriana
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| Binomial name | |
| Nuphar × spenneriana Gaudin[1]
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| Synonyms[1] | |
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List
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Nuphar × spenneriana is a species of rhizomatous aquatic plant native to Europe. It is a natural hybrid of Nuphar lutea and Nuphar pumila.[1]
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Description
Vegetative characteristics
Nuphar × spenneriana is a perennial, rhizomatous, aquatic plant.[2] The abaxial leaf surface has trichomes towards the leaf margin.[3] The leaf has 15-22 primary nerves.[4]
Generative characteristics
The androecium consists of 60-100 stamens.[4] The stigmatic disc has 9-15 rays.[3]
Reproduction
Generative reproduction
It is fertile, but the pollen may be less viable.[5][6] Pollen fertility can reach 73%. However, it can also be as low as 14% in F1 hybrids.[6] In another case, a female sterility rate of 80%, and a male sterility rate of 85% have been reported.[7] The seeds grow more rapidly than those of the parent species.[5][7]
Taxonomy
Publication
It was first described by Jean François Aimé Théophile Philippe Gaudin in 1828.[1]
Natural hybridisation
It likely arose 10 000 years ago, when both parent species came into contact.[8] Natural hybridisation is a threat to Nuphar pumila, one of the parent species, as the hybrid replaces populations of Nuphar pumila.[5] In Eastern Europe and Asia observations of intermediate plants are rare. In Western Europe hybridisation appears to have played a more significant role.[6]
Etymology
The hybrid name spenneriana honours Fridolin Carl Leopold Spenner (1798-1841).[9][10]
Ecology
Habitat
It occurs in rivers, lakes, streams, and pools.[7][2]
References
- ↑ 1.0 1.1 1.2 1.3 "Nuphar × spenneriana Gaudin" (in en). Royal Botanic Gardens, Kew. http://www.plantsoftheworldonline.org/taxon/. Retrieved 19 January 2024.
- ↑ 2.0 2.1 Stroh, P. A., Walker, K. J., Humphrey, T. A., Pescott, O. L., Burkmar, R. J. (2023). "Plant Atlas 2020: Mapping Changes in the Distribution of the British and Irish Flora." p. 109. Vereinigtes Königreich: Princeton University Press.
- ↑ 3.0 3.1 Schou, J. C., Moeslund, B., Weyer, K. v. d., Wiegleb, G., Lansdown, R. V., Holm, P., Baastrup-Spohr, L., Sand-Jensen, K. (2023). "Aquatic Plants of Northern and Central Europe Including Britain and Ireland." p. 74. USA: Princeton University Press.
- ↑ 4.0 4.1 Müller, F., Ritz, C. M., Wesche, K., & Welk, E. (2021). Rothmaler - Exkursionsflora von Deutschland. Gefäßpflanzen: Grundband (22nd ed.). p. 131. Springer Spektrum.
- ↑ 5.0 5.1 5.2 Kozlowski, G., & Eggenberg, S. (2005). "Vorkommen der Kleinen Teichrose Nuphar pumila und des Hybrids N. x intermedia in der Schweiz." Botanica Helvetica, 115, 125-136.
- ↑ 6.0 6.1 6.2 Volkova, P. A., Arutyunyan, N. G., Schanzer, I. A., Chemeris, E. V., & Bobrov, A. A. (2018). "Genetic variability of Eurasian Nuphar species unravels possible routes in which freshwater plants could fill their wide areas." Aquatic Botany, 145, 49-57.
- ↑ 7.0 7.1 7.2 Preston, C. D., Croft, J. M. (2022). "Aquatic Plants in Britain and Ireland." p. 40 Niederlande: Brill.
- ↑ Vallejo‐Marín, M., & Hiscock, S. J. (2016). "Hybridization and hybrid speciation under global change." New Phytologist, 211(4), 1170-1187.
- ↑ "Allgemeine deutsche biographie." (1893). p. 123. (n.p.): Duncker und Humblot.
- ↑ Bayerische Staatsbibliothek. (n.d.). Deutsche biographie - Spenner, Fridolin Karl Leopold. Retrieved January 26, 2024, from https://www.deutsche-biographie.de/sfz80689.html
Wikidata ☰ Q15605476 entry
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