| Nymphaea stuhlmannii | |
|---|---|
| |
| Botanical illustration of Nymphaea stuhlmannii in the publication "The waterlilies: a monograph of the genus Nymphaea" by Henry Shoemaker Conard | |
| Conservation status | |
 Endangered (IUCN 3.1) | |
Scientific 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 | |
| |
| Nymphaea stuhlmannii is endemic to Tanzania | |
| Synonyms | |
| |
Nymphaea stuhlmannii is a species of waterlily endemic to Tanzania.
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. The 25.5 cm long, 21 cm wide, petiolate, ovate-orbicular leaves have an entire margin. The venation is prominent.
Generative characteristics
The fragrant flowers are 10-15 cm wide. They are yellow. The four sepals are obovate. The 22 petals are broadly obovate. The androecium consists of 125 stamens. The gynoecium consists of 23 carpels. 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.
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.
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.
Etymology
The specific epithet stuhlmannii honours Stuhlmann, who collected the type specimen.
Conservation
It is an endangered species (EN). It was feared to be extinct.
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.
References
- ^ Mollel, N. 2024. Nymphaea stuhlmannii. The IUCN Red List of Threatened Species 2024: e.T185721A248552468. Accessed on 29 October 2024.
- ^ "Nymphaea stuhlmannii (Engl.) Schweinf. & Gilg". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 4 January 2024.
- ^ Conard, H. S. (2015). The Waterlilies: A Monograph of the Genus Nymphaea (Classic Reprint). pp. 161-162. USA: FB&C Limited.
- 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
- Magdalena, C. (2018). "Der Pflanzen-Messias – Abenteuerliche Reisen zu den seltensten Arten der Welt. Deutschland:" Piper ebooks.
| Taxon identifiers | |
|---|---|
| Nymphaea stuhlmannii | |
| Nymphaea lotus var. stuhlmannii | |