Nymphaea × daubenyana
Nymphaea × daubenyana cultivated at the Brooklyn Botanic Garden, New York, USA
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Nymphaea
Species:
N. × daubenyana
Binomial name
Nymphaea × daubenyana
W.T.Baxter ex Daubeny[1]
It is endemic to Chad, but has been introduced to Florida, USA[1]
Synonyms[1]
  • Nymphaea × daubeniana O.Thomas

Nymphaea × daubenyana is a species of waterlily endemic to Chad, but has been introduced to Florida, USA. It is a natural hybrid of Nymphaea micrantha and Nymphaea nouchali var. caerulea.[1]

Description

Parent species of the natural hybrid
Nymphaea × daubenyana W.T.Baxter ex Daubeny
Nymphaea micrantha Guill. & Perr.
Nymphaea nouchali var. caerulea (Savigny) Verdc.

Vegetative characteristics

It has a tuberous rhizome. The cordate, elliptical-roundish, 30 cm wide leaves have an entire margin. The adaxial surface is coloured brightly green with red marks. The abaxial leaf surface is pale - brownish red. Proliferating tissue is found on the leaf blade above the attachment point of the petiole.[2][3]

Generative characteristics

The blue flowers are 10 cm wide. The narrow petals have an acute apex.[3][2] The ovules are bitegmic and anatropous.[4] The flowers are fragrant.[5][6][7]

Cytology

A chromosome count of 89 or 87 chromosomes has been reported.[8] The diploid chromosome count has also been reported to be 2n = 42.[9]

Reproduction

Vegetative reproduction

Vegetative reproduction through foliar proliferation occurs in Nymphaea × daubenyana.[3][10][11]

Taxonomy

Publication

It was first named by W.T.Baxter, but only later validly published by Charles Giles Bridle Daubeny (1795-1867) in 1864.[1]

Placement within Nymphaea

It is placed in Nymphaea subgenus Brachyceras.[12]

Etymology

It is named after Professor Charles Giles Bridle Daubeny.

Cultivation

Nymphaea × daubenyana cultivated in India

It is suited for cultivation in small ponds, containers, and aquaria.[13][14][6][15] It is a fast growing and floriferous species.[6] Despite being a tropical waterlily, it is relatively cold-tolerant.[16]

References

  1. 1 2 3 4 5 "Nymphaea × daubenyana W.T.Baxter ex Daubeny". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 28 December 2023.
  2. 1 2 Nymphaea in Flora of North America @ efloras.org. (n.d.). Retrieved December 28, 2023, from http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=122531
  3. 1 2 3 De Thabrew, W. V. (2014). "A Manual of Water Plants." pp. 181-182. USA: AuthorHouse.
  4. Kraehmer, H. (2019). "Grasses: Crops, Competitors, and Ornamentals." p. 95. John Wiley & Sons.
  5. Niklitschek, A. (1955). "Vom Zimmergarten der Zukunft: neue Tatsachen und Probleme." p. 190. Deutschland: Bruckmann.
  6. 1 2 3 "Illustrirte Garten-Zeitung." p. 21. (1883). Deutschland: (n.p.).
  7. Rodd, T., Bryant, G., & Barnard, L. (2007). "The plant finder: The Right Plants for Every Garden." p. 521. Richmond Hill, Ont. : Firefly Books.
  8. Tischler, G. F. L. (1953). "Allgemeine Pflanzenkaryologie: Ergänzungsband: Angewandte Pflanzenkaryologie." p. 445. Deutschland: Gebr. Borntraeger.
  9. Hossain, A., Kabir, G., Ud-deen, M. M., & Alam, A. M. S. (2007). "Cytological studies of Nymphaea species available in Bangladesh." Journal of Bio-Science, 15, 7-13.
  10. Labarre, E. J. (1935). “Viviparous” Succulents. The Cactus Journal, 4(2), 36–37. http://www.jstor.org/stable/42784943
  11. Schmucker, Th. (1932). PHYSIOLOGISCHE UND ÖKOLOGISCHE UNTERSUCHUNGEN AN BLÜTEN TROPISCHER NYMPHAEA-ARTEN. Zeitschrift Für Wissenschaftliche Biologie. Abteilung E. Planta, 16(2), 376–412. http://www.jstor.org/stable/23841796
  12. Weidlich, W. H. (1976). The Organization of the Vascular System in the Stems of the Nymphaeaceae. II. Nymphaea Subgenera Anecphya, Lotos, and Brachyceras. American Journal of Botany, 63(10), 1365–1379. https://doi.org/10.2307/2441845
  13. Böswirth, D., Thinschmidt, A. (2019). "Miniwassergärten (Mein Garten): Gestalten Pflanzen Pflegen." p. 72. Deutschland: Franckh-Kosmos Verlags-GmbH & Company KG.
  14. Heß, T. (2021). "Kosmos Gartenjahr 2022: Der praktische Arbeitskalender mit Aussaattagen." p. 84. Deutschland: Franckh-Kosmos Verlags-GmbH & Company KG.
  15. Nymphaea × daubenyana. (n.d.). Flowgrow. Retrieved December 28, 2023, from https://www.flowgrow.de/db/aquaticplants/nymphaea-daubenyana#:~:text=Nymphaea%20x%20daubenyana%20is%20a%20cultivated%20hybrid%20of,basis%2C%20which%20makes%20this%20Nymphaea%20easy%20to%20propagate.
  16. Nymphaea “Daubeniana” (Dauben, daubeniana). (n.d.). North Carolina Extension Gardener Plant Toolbox. Retrieved December 28, 2023, from https://plants.ces.ncsu.edu/plants/nymphaea-daubeniana/
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.