Nymphaea sect. Chamaenymphaea

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Nymphaea sect. Chamaenymphaea
Nymphaea leibergii (1).jpg
Nymphaea leibergii in its natural habitat
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Nymphaea
Subgenus: Nymphaea subg. Nymphaea
Section: Nymphaea sect. Chamaenymphaea
(Planch.) Wiersema
Type species
Nymphaea pygmaea (Salisb.) W.T.Aiton [1]
Species

See here.

Nymphaea sect. Chamaenymphaea is a section within the subgenus Nymphaea subg. Nymphaea of the genus Nymphaea [2] [3] [4] native to North America, [4] [5] Asia, [5] and Europe. [3]

Contents

Description

Nymphaea leibergii floating leaves Nymphaea leibergii5 (5097938122).jpg
Nymphaea leibergii floating leaves

Vegetative characteristics

Its species have small, [3] erect, [4] [6] cylindric, unbranched rhizomes lacking stolons. [4] Both floating and submerged leaves are produced. [4] The obovate to oval, [7] glabrous, petiolate leaves [4] with an entire margin [4] [7] have glabrous petioles [4] with two primary air canals. [7]

Generative characteristics

The small, 3–7.5 cm wide, [6] white or rosy, [7] flowers have peduncles with 4 primary air canals. [7] The sepals are green. The 8–17 petals are white. [4] The filaments are widest above the middle of the filament. [3] The gynoecium consists of 5–12 carpels. The fruit bears smooth, ovoid, 2–3 mm long, and 1.5–2 mm wide seeds. [4]

Taxonomy

It was first published as Nymphaea subsect. Chamaenymphaea Planch. by Jules Émile Planchon in 1853. [8] It was then given a new status as Nymphaea sect. Chamaenymphaea (Planch.) Wiersema published by John Harry Wiersema in 1997. [9] It is placed in the subgenus Nymphaea subg. Nymphaea. [3]

Species

Distribution

It occurs in North America, [4] [5] Asia, [5] and Europe. [3]

Fossil record

The fossil species † Nymphaea minuta Saporta has been described as being very similar to Nymphaea pygmaea [10] [11] and Nymphaea tetragona. [12] It was speculated that it may represent an ancestral species of Nymphaea pygmaea. [11]

References

  1. ↑ Ortgies, E. (1851). Die Familie der Nymphaeen. Neue Allgemeine Deutsche Garten- Und Blumenzeitung, 7(11), pp. 481–484.
  2. ↑ USDA, Agricultural Research Service, National Plant Germplasm System. 2024. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland. URL: https://npgsweb.ars-grin.gov/gringlobal/taxon/taxonomygenus?type=section&id=18695. Accessed 3 December 2024.
  3. 1 2 3 4 5 6 Borsch, T., Hilu, K. W., Wiersema, J. H., Löhne, C., Barthlott, W., & Wilde, V. (2007). Phylogeny of Nymphaea (Nymphaeaceae): evidence from substitutions and microstructural changes in the chloroplast trnT-trnF region. International Journal of Plant Sciences, 168(5), 639-671.
  4. 1 2 3 4 5 6 7 8 9 10 11 12 13 Wiersema, J. H. (1996). Nymphaea tetragona and Nymphaea leibergii (Nymphaeaceae): two species of diminutive water-lilies in North America. Brittonia, 48, 520-531.
  5. 1 2 3 4 5 Naito, H., Kato, S., Shutoh, K., & Shiga, T. (2024). Morphological and phylogenetic analyses reveal the taxonomic distinctiveness between Nymphaea pygmaea and N. tetragona (Nymphaeaceae).
  6. 1 2 3 Borsch, T., Wiersema, J. H., Hellquist, C. B., Löhne, C., & Govers, K. (2014). Speciation in North American water lilies: evidence for the hybrid origin of the newly discovered Canadian endemic Nymphaea loriana sp. nov.(Nymphaeaceae) in a past contact zone. Botany, 92(12), 867-882.
  7. 1 2 3 4 5 Conard, Henry S. (1905). The waterlilies: a monograph of the genus Nymphaea (p. 167). Pub. by the Carnegie Institution of Washington. https://www.biodiversitylibrary.org/page/35045000
  8. ↑ Nymphaea subsect. Chamaenymphaea Planch. (n.d.). International Plant Names Index. Retrieved December 4, 2024, from https://www.ipni.org/n/306974-2
  9. ↑ Nymphaea sect. Chamaenymphaea (Planch.) Wiersema. (n.d.). International Plant Names Index. Retrieved December 3, 2024, from https://www.ipni.org/n/994069-1
  10. ↑ Comptes rendus hebdomadaires des séances de l'Académie des Sciences. p. 889. (1894). Frankreich: Gauthier-Villars.
  11. 1 2 de Saporta, G. (1891). Recherches sur la végétation du niveau aquitanien de Manosque. pp. 13–14. Librairie polytechnique.
  12. ↑ Revue générale de botanique. p. 191. (1890). Frankreich: Libraire générale de le̓nseignement.
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