Biology:Nymphaea stuhlmannii

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Short description: Species of water lily

Nymphaea stuhlmannii
Nymphaea stuhlmannii.jpg
Botanical illustration of Nymphaea stuhlmannii in the publication "The waterlilies: a monograph of the genus Nymphaea" by Henry Shoemaker Conard
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Nymphaea
Species:
N. stuhlmannii
Binomial name
Nymphaea stuhlmannii
(Engl.) Schweinf. & Gilg[1]
Tanzania in its region.svg
Nymphaea stuhlmannii is endemic to Tanzania
Synonyms[1]
  • Nymphaea lotus var. stuhlmannii Engl.
  • Nymphaea burttii Pring & Woodson
  • Nymphaea citrina Peter
  • Nymphaea holoxantha Peter

Nymphaea stuhlmannii is a species of waterlily endemic to Tanzania.[1]

Description

Vegetative characteristics

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.[1] The 25.5 cm long, 21 cm wide, petiolate, ovate-orbicular leaves have an entire margin. The venation is prominent.[2]

Generative characteristics

The fragrant flowers are 10-15 cm wide.[2] They are yellow.[3] The four sepals are obovate. The 22 petals are broadly obovate. The androecium consists of 125 stamens. The gynoecium consists of 23 carpels.[2] 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.[1]

Taxonomy

Publication

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.[1]

Type specimen

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.[2]

Etymology

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

Conservation

It was feared to be extinct.[4]

Ecology

Habitat

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.[1]

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 "Nymphaea stuhlmannii (Engl.) Schweinf. & Gilg" (in en). Royal Botanic Gardens, Kew. http://www.plantsoftheworldonline.org/taxon/605718-1. Retrieved 4 January 2024. 
  2. 2.0 2.1 2.2 2.3 Conard, H. S. (2015). The Waterlilies: A Monograph of the Genus Nymphaea (Classic Reprint). pp. 161-162. USA: FB&C Limited.
  3. 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
  4. Magdalena, C. (2018). "Der Pflanzen-Messias – Abenteuerliche Reisen zu den seltensten Arten der Welt. Deutschland:" Piper ebooks.

Wikidata ☰ Q15482121 entry