Boronia grandisepala

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Boronia grandisepala
Boronia grandisepala.jpg
Boronia grandisepala in the Nitmiluk National Park
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Boronia
Species:
B. grandisepala
Binomial name
Boronia grandisepala
Boronia grandisepala DistMap52.png
Occurrence data from Australasian Virtual Herbarium

Boronia grandisepala is a plant in the citrus family Rutaceae and is endemic to northern parts of the Northern Territory. It is an erect shrub with elliptic leaves and white, pink or burgundy-coloured, four-petalled flowers.

Contents

Description

Boronia grandisepala is an erect shrub that grows to 150 cm (60 in) high and wide. Its branches and leaves are covered with star-like hairs. The leaves are elliptic to almost lance-shaped, 7–55 mm (0.3–2 in) long and 1.5–14 mm (0.06–0.6 in) wide with a petiole 1.5–14 mm (0.06–0.6 in) long. The flowers are usually arranged singly in leaf axils on a pedicel up to 2.5 mm (0.1 in) long. The four sepals are larger than the petals, white, pink or burgundy coloured, broadly egg-shaped, 7–10 mm (0.3–0.4 in) long and 2–5.5 mm (0.08–0.2 in) wide but increase in size as the fruit develops. The four petals are 4–6 mm (0.16–0.24 in) long and 1.5–3 mm (0.06–0.1 in) wide. Flowering occurs from December to June. [2]

Taxonomy and naming

Boronia grandisepala was first formally described in 1859 by Ferdinand von Mueller who published the description in Fragmenta phytographiae Australiae . [3] [4] The specific epithet (grandisepala) is derived from the Latin words grandis meaning "large" and sepalum meaning "sepal", [5] [6] [7] giving "large sepaled Boronia".

In 1997, Marco Duretto described two subspecies in the journal Australian Systematic Botany and the names have been accepted by the Australian Plant Census:

Distribution and habitat

Subspecies grandisepala grows in heath and woodland from near Jim Jim Falls to the Nitmiluk National Park. Subspecies acanthophida grows in sandstone heath and woodland between Jim Jim Falls and Deaf Adder Falls 40 km (20 mi) north. [2]

Conservation

This boronia is classed as of "least concern" under the Northern Territory Government Parks and Wildlife Conservation Act. [10]

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<i>Boronia lanceolata</i> Species of flowering plant

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<i>Boronia purdieana</i> Species of flowering plant

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<i>Boronia capitata</i> Species of flowering plant

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References

  1. "Boronia eriantha". Australian Plant Census. Retrieved 16 March 2020.
  2. 1 2 3 4 5 Duretto, Marco (1999). "Systematics of Boronia section Valvatae sensu lato (Rutaceae)" (PDF). Muelleria. 12 (1): 96–98. Archived from the original (PDF) on 6 April 2020. Retrieved 2 February 2019.
  3. "Boronia grandisepala". APNI. Retrieved 2 February 2019.
  4. von Mueller, Ferdinand (1859). Fragmenta phytographiae Australiae (Volume 1). Melbourne: Victorian Government Printer. p. 66. Retrieved 31 January 2019.
  5. Backer, C.A. (1936). Verklarend woordenboek der wetenschappelijke namen van de in Nederland en Nederlandsch-Indië in het wild groeiende en in tuinen en parken gekweekte varens en hoogere planten (Edition Nicoline van der Sijs).
  6. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. pp. 461, 462.
  7. Stearn, W.T. (2004). Botanical Latin (4th ed). Portland, Oregon: Timber Press. pp. 421, 492.
  8. "Boronia grandisepala subsp. grandisepala". APNI. Retrieved 16 March 2020.
  9. "Boronia grandisepala subsp. acanthopida". APNI. Retrieved 16 March 2020.
  10. "Boronia grandisepala". Northern Territory Government. Retrieved 3 February 2019.