Nymphaea × daubenyana explained
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.
Description
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.[1]
Generative characteristics
The blue flowers are 10 cm wide. The narrow petals have an acute apex.[2] The ovules are bitegmic and anatropous.[3] The flowers are fragrant.[4] [5]
Cytology
A chromosome count of 89 or 87 chromosomes has been reported.[6] The diploid chromosome count has also been reported to be 2n = 42.[7]
Reproduction
Vegetative reproduction
Vegetative reproduction through foliar proliferation occurs in Nymphaea × daubenyana.[8] [9]
Taxonomy
Publication
It was first named by W.T.Baxter, but only later validly published by Charles Giles Bridle Daubeny (1795-1867) in 1864.
Placement within Nymphaea
It is placed in Nymphaea subgenus Brachyceras.[10]
Etymology
It is named after Professor Charles Giles Bridle Daubeny.
Cultivation
It is suited for cultivation in small ponds, containers, and aquaria.[11] [12] [13] [14] It is a fast growing and floriferous species. Despite being a tropical waterlily, it is relatively cold-tolerant.[15]
Notes and References
- De Thabrew, W. V. (2014). "A Manual of Water Plants." pp. 181-182. USA: AuthorHouse.
- 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
- Kraehmer, H. (2019). "Grasses: Crops, Competitors, and Ornamentals." p. 95. John Wiley & Sons.
- Niklitschek, A. (1955). "Vom Zimmergarten der Zukunft: neue Tatsachen und Probleme." p. 190. Deutschland: Bruckmann.
- Rodd, T., Bryant, G., & Barnard, L. (2007). "The plant finder: The Right Plants for Every Garden." p. 521. Richmond Hill, Ont. : Firefly Books.
- Tischler, G. F. L. (1953). "Allgemeine Pflanzenkaryologie: Ergänzungsband: Angewandte Pflanzenkaryologie." p. 445. Deutschland: Gebr. Borntraeger.
- 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.
- Labarre, E. J. (1935). “Viviparous” Succulents. The Cactus Journal, 4(2), 36–37. http://www.jstor.org/stable/42784943
- 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
- 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
- Böswirth, D., Thinschmidt, A. (2019). "Miniwassergärten (Mein Garten): Gestalten Pflanzen Pflegen." p. 72. Deutschland: Franckh-Kosmos Verlags-GmbH & Company KG.
- Heß, T. (2021). "Kosmos Gartenjahr 2022: Der praktische Arbeitskalender mit Aussaattagen." p. 84. Deutschland: Franckh-Kosmos Verlags-GmbH & Company KG.
- https://www.google.de/books/edition/Illustrirte_Garten_Zeitung/xpg9AQAAMAAJ?hl=de&gbpv=1&dq=Nymphaea%20%C3%97%20daubenyana&pg=PA21&printsec=frontcover "Illustrirte Garten-Zeitung."
- 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.
- 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/