''Nymphaea jacobsii'' is a species of waterlily endemic to Queensland, Australia.

Description

Vegetative characteristics

''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.

Generative characteristics

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.

Taxonomy

Publication

It was first described by

Carl Barre Hellquist Carl may refer to: *Carl, Georgia, city in USA *Carl, West Virginia, an unincorporated community *Carl (name), includes info about the name, variations of the name, and a list of people with the name *Carl², a TV series * "Carl", an episode of tel ...

in 2011.

Type specimen

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.Holotype of ''Nymphaea jacobsii'' Hellq. amily NYMPHAEACEAE (n.d.). JSTOR. Retrieved January 2, 2024, from https://plants.jstor.org/stable/10.5555/al.ap.specimen.nsw921933Jacobs, 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.

Subspecies

Two subspecies, namely ''Nymphaea jacobsii'' subsp. ''jacobsii'', and ''Nymphaea jacobsii'' subsp. ''toomba'' Hellq., have been described.

Placement within ''Nymphaea''

It is placed in ''Nymphaea'' subgenus ''Anecphya''.

Natural hybridisation

A natural hybrid of ''Nymphaea jacobsii'' and ''

Nymphaea violacea ''Nymphaea violacea'', also known as blue lily, is a waterlily in the genus '' Nymphaea''. Distribution ''Nymphaea violacea'' is found in Australia, particularly in the Western Australian Kimberley region and in northern parts of Queensland a ...

'' has been described, but not named.

Etymology

It is named after

Surrey Wilfrid Laurance Jacobs Surrey () is a ceremonial county, ceremonial and non-metropolitan county, non-metropolitan counties of England, county in South East England, bordering Greater London to the south west. Surrey has a large rural area, and several significant ur ...

Conservation

The

NCA NCA may refer to: Businessses and organisations Australia * National Capital Authority, a government authority for development planning of the Capital Territory * National Crime Authority, defunct investigative agency India * Nuclear Command Aut ...

status of ''Nymphaea jacobsii'' is Special Least Concern (SL).

Ecology

Habitat

It is found in lakes, and creeks.

References

{{Taxonbar, from=Q17253199, from2=Q21383938, from3=Q21383939 jacobsii Flora of Australia Endemic flora of Australia Flora of Queensland Endemic flora of Queensland Plants described in 2011