Nymphaea stuhlmannii is a species of waterlily endemic to Tanzania.[2]

Nymphaea stuhlmannii
Botanical illustration of Nymphaea stuhlmannii in the publication "The waterlilies: a monograph of the genus Nymphaea" by Henry Shoemaker Conard
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Nymphaea
Subgenus: Nymphaea subg. Brachyceras
Species:
N. stuhlmannii
Binomial name
Nymphaea stuhlmannii
(Engl.) Schweinf. & Gilg[2]
Nymphaea stuhlmannii is endemic to Tanzania
Synonyms[2]
  • Nymphaea lotus var. stuhlmannii Engl.
  • Nymphaea burttii Pring & Woodson
  • Nymphaea citrina Peter
  • Nymphaea holoxantha Peter

Description

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Vegetative characteristics

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Nymphaea stuhlmannii is an aquatic herb with 5–12 cm long, 3–4 cm wide, globose to ovoid, blackish brown rhizomes and white, long roots.[2] The 25.5 cm long, 21 cm wide, petiolate, ovate-orbicular leaves have an entire margin. The venation is prominent.[3]

Generative characteristics

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The fragrant flowers are 10-15 cm wide.[3] They are yellow.[4] The four sepals are obovate. The 22 petals are broadly obovate. The androecium consists of 125 stamens. The gynoecium consists of 23 carpels.[3] The 3–4.5 cm long, and 4–6 cm wide fruit bears numerous ovoid 0.7–1 mm long, and 0.5–0.75 mm wide seeds.[2]

Taxonomy

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Publication

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It was first described by Adolf Engler as Nymphaea lotus var. stuhlmannii Engl. in 1895. Later, it was elevated to the status of a separate species Nymphaea stuhlmannii (Engl.) Schweinf. & Gilg by Georg August Schweinfurth and Ernest Friedrich Gilg in 1903.[2]

Type specimen

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The type specimen was collected by Franz Ludwig Stuhlmann (1863-1928) in Uniamweni, Gunda mkali, close to Bibisande, Africa at 1200 m above sea level on the 16th of July 1890.[3]

Etymology

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The specific epithet stuhlmannii honours Stuhlmann, who collected the type specimen.

Conservation

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It is an endangered species (EN).[1] It was feared to be extinct.[5]

Ecology

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Habitat

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Nymphaea stuhlmannii occurs in shallow pools subject to seasonal droughts at an elevation of 1140 m above sea level. The rhizomes are exposed on the surface during the dry season.[2]

References

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  1. ^ a b Mollel, N. 2024. Nymphaea stuhlmannii. The IUCN Red List of Threatened Species 2024: e.T185721A248552468. Accessed on 29 October 2024.
  2. ^ a b c d e f g "Nymphaea stuhlmannii (Engl.) Schweinf. & Gilg". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 4 January 2024.
  3. ^ a b c d Conard, H. S. (2015). The Waterlilies: A Monograph of the Genus Nymphaea (Classic Reprint). pp. 161-162. USA: FB&C Limited.
  4. ^ Pring, G. H., & Woodson, R. E. (1933). A New Yellow Nymphaea from Tropical Africa. Annals of the Missouri Botanical Garden, 20(1), 1–6. https://doi.org/10.2307/2394418
  5. ^ Magdalena, C. (2018). "Der Pflanzen-Messias – Abenteuerliche Reisen zu den seltensten Arten der Welt. Deutschland:" Piper ebooks.