Nymphaea jacobsii

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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]

Nymphaea jacobsii is a species of waterlily 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