Nymphaea jacobsii is a species of waterlily endemic to Queensland, Australia.[2]

Nymphaea jacobsii
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Nymphaea
Species:
N. jacobsii
Binomial name
Nymphaea jacobsii
Hellq.[2]
Subspecies[2]
  • Nymphaea jacobsii subsp. jacobsii
  • Nymphaea jacobsii subsp. toomba Hellq.
Nymphaea jacobsii is endemic to Queensland, Australia[2]

Description

edit

Vegetative characteristics

edit

Nymphaea jacobsii is an annual or perennial aquatic plant with elongate to globose rhizomes. The broadly elliptic, 40 cm long, 35 cm wide, petiolate leaves have a dentate margin.[3]

Generative characteristics

edit

The inodorous flowers extend up to 30 cm above the water surface. The sepals are 4.2–13 cm long, and 5.5 cm wide. The 12-24 white to deep blue, lanceolate petals are 1–11.5 cm long, and 2.5-5.5 cm wide. The androecium consists of 150-300 yellow stamens. The gynoecium consists of 12-25 carpels. The globose, 2.3–9 cm wide fruit bears numerous large, ovoid, 2.6–7 mm long and 2–3.5 mm wide seeds with 0.1-0.13 mm long trichomes.[3]

Taxonomy

edit

Publication

edit

It was first described by Carl Barre Hellquist in 2011.[2]

Type specimen

edit

The Type specimen was collected by S. W. L. Jacobs and C. B. Hellquist in Lake Powlanthanga, Queensland, Australia on the 12th of June 2007.[4][3]

Subspecies

edit

Two subspecies, namely Nymphaea jacobsii subsp. jacobsii, and Nymphaea jacobsii subsp. toomba Hellq., have been described.[2][3]

Placement within Nymphaea

edit

It is placed in Nymphaea subgenus Anecphya.[3]

Natural hybridisation

edit

A natural hybrid of Nymphaea jacobsii and Nymphaea violacea has been described, but not named.[3]

Etymology

edit

It is named after Surrey Wilfrid Laurance Jacobs.[3]

Conservation

edit

The NCA status of Nymphaea jacobsii is Special Least Concern (SL).[1]

Ecology

edit

Habitat

edit

It is found in lakes, and creeks.[3]

References

edit
  1. ^ a b Queensland Government. (2022f, March 8). Species profile — Nymphaea jacobsii. Retrieved January 2, 2024, from https://apps.des.qld.gov.au/species-search/details/?id=40536
  2. ^ a b c d e f g "Nymphaea jacobsii Hellq". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2 January 2024.
  3. ^ a b c d e f g h Jacobs, S. W., & Hellquist, C. B. (2011). "New species, possible hybrids and intergrades in Australian Nymphaea (Nymphaeaceae) with a key to all species." Telopea, 13(1-2), 233-243.
  4. ^ Holotype of Nymphaea jacobsii Hellq. [family NYMPHAEACEAE]. (n.d.). JSTOR. Retrieved January 2, 2024, from https://plants.jstor.org/stable/10.5555/al.ap.specimen.nsw921933