Banksia acuminata
Banksia acuminata | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Proteales |
Family: | Proteaceae |
Genus: | Banksia |
Subgenus: | Banksia subg. Banksia |
Series: | Banksia ser. Dryandra |
Species: | B. acuminata
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Binomial name | |
Banksia acuminata | |
Synonyms[1] | |
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Banksia acuminata is a rare
Description
It grows as a prostrate shrub with a
Flowers occur in the dome-shaped head characteristic of
As in all
Taxonomy
First collected by Ludwig Preiss near the Gordon River on 7 November 1840, it was published as Dryandra preissii by Carl Meissner in 1845, in the first volume of Plantae Preissianae. Meissner did not give an etymology for the specific epithet,[4] but it is accepted that the name honours the collector.[3]
When Meissner published
A synonym, Josephia preissii, arises from
In 1996, Alex George published the first modern-day arrangement of Dryandra. He placed D. preissii alone in a new series, Dryandra ser. Acuminatae, named from the Latin acuminatus ("tapering to a protracted point") in reference to the unusual involucral bracts.[8] The placement of D. preissii in George's arrangement of Dryandra, with 1999[2] and 2005[9] amendments, may be summarised as follows:
- Dryandra (now Banksia ser. Dryandra)
- D. subg. Dryandra
- D. ser. Floribundae (1 species, 4 varieties)
- D. ser. Armatae (21 species, 7 subspecies, 4 varieties)
- D. ser. Marginatae (1 species)
- D. ser. Folliculosae(1 species, 5 varieties)
- D. ser. Acrodontae (4 species, 2 varieties)
- D. ser. Capitellatae (2 species, 2 subspecies)
- D. ser. Ilicinae (3 species, 2 varieties)
- D. ser. Dryandra (3 species, 2 subspecies)
- D. ser. Foliosae (3 species, 2 subspecies)
- D. ser. Decurrentes (1 species)
- D. ser. Tenuifoliae (2 species, 2 varieties)
- D. ser. Runcinatae (4 species, 7 subspecies)
- D. ser. Triangulares (3 species, 3 subspecies)
- D. ser. Aphragma (9 species, 3 subspecies)
- D. ser. Ionthocarpae(1 species, 2 subspecies)
- D. ser. Inusitatae(1 species)
- D. ser. Subulatae(1 species)
- D. ser. Gymnocephalae (11 species, 4 subspecies, 2 varieties)
- D. ser. Plumosae (3 species, 2 subspecies)
- D. ser. Concinnae (3 species)
- D. ser. Obvallatae (7 species, 2 varieties)
- D. ser. Pectinatae (1 species)
- D. ser. Acuminatae
- D. preissii (now Banksia acuminata)
- D. ser. Niveae
- D. subg. Hemiclidia (2 species)
- D. subg. Diplophragma (1 species)
- D. subg. Dryandra
George's arrangement remained current until February 2007, when Austin Mast and Kevin Thiele transferred Dryandra into Banksia. As the name Banksia preissii had already been published by Otto Kuntze for the plant now known as Pimelea preissii, Mast and Thiele were forced to choose a new specific epithet; their choice, "acuminata", was for the same reasons as George's D. ser. Acuminatae.[10]
Mast and Thiele also published B. subg. Spathulatae for the Banksia taxa having spoon-shaped cotyledons, thus redefining B. subg. Banksia as comprising those that do not. They were not ready, however, to tender an infrageneric arrangement encompassing Dryandra, so as an interim measure they transferred Dryandra into Banksia at series rank. This minimised the nomenclatural disruption of the transfer, but also caused George's rich infrageneric arrangement to be set aside. Thus under the interim arrangements implemented by Mast and Thiele, B. acuminata is placed in B. subg. Banksia, ser. Dryandra.[10]
Distribution and habitat
It is restricted to the
Conservation status
As of 2008, B. acuminata is listed as "Priority Four - Rare" on the Department of Environment and Conservation's Declared Rare and Priority Flora List.[11] This means that the species is considered to be rare, but there do not appear to be any serious threats to its survival.
An assessment of the potential
References
- ^ a b "Banksia acuminata". Australian Plant Census. Retrieved 26 March 2020.
- ^ ISBN 0-643-06454-0.
- ^ ISBN 1-876473-54-1.
- ^ Meissner, Carl (1845). "Dryandra". In Lehmann, Johann (ed.). Plantae Preissianae. Vol. I. Hamburg: Meissner. Retrieved 1 June 2008.
- Prodromus systematis naturalis regni vegetabilis. Vol. XIV. Paris: Sumptibus Sociorum Treuttel et Wurtz. pp. 467–481.
- ^ Bentham, George (1870). "Dryandra". Flora Australiensis. Vol. 5: Myoporineae to Proteaceae. London: L. Reeve & Co. pp. 562–584.
- ^ Kuntze, Otto (1891). Revisio Generum Plantarum: Pars II. Leipzig: Arthur Felix. p. 578.
- ^ George, Alex S. (1996). "New taxa and a new infrageneric classification in Dryandra R.Br. (Proteaceae: Grevilleoideae)". Nuytsia. 10 (3): 313–408.
- ^ George, A. S. (2005). "Further new taxa in Dryandra R.Br. (Proteaceae: Grevilleoideae)" (PDF). Nuytsia. 15 (3): 337–346. Archived from the original (PDF) on 27 November 2015. Retrieved 26 March 2009.
- ^ doi:10.1071/SB06016.
- ^ Department of Biodiversity, Conservation and Attractions.
- .
External links
- "Dryandra preissii Meisn". Flora of Australia Online. Department of the Environment and Heritage, Australian Government.
- "Banksia acuminata A.R.Mast & K.R.Thiele". Department of Biodiversity, Conservation and Attractions.
- "Banksia acuminata A.R.Mast & K.R.Thiele". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.