Banksia armata var. armata
Habit in the Beelu National Park
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Banksia
Species:
B. armata

Variety:
B. a. var. armata
Trinomial name
Banksia armata var. armata
Synonyms[1]

Banksia armata var. armata is a variety of shrub that is endemic to Western Australia. It differs from the other variety (Banksia armata var. ignicida) in having a lignotuber, narrower leaves with more side lobes and shorter flowers. It is also usually a shorter plant.

Description

Banksia armata var. armata is a shrub that typically grows to a height of 1.5 m (4 ft 11 in) and forms a lignotuber. It has leaves that are 20–80 mm (0.79–3.15 in) long and 8–20 mm (0.31–0.79 in) wide and deeply serrated with between six and thirteen triangular, sharply pointed lobes on each side. The perianth is yellow, 25–32 mm (0.98–1.26 in) long and the pistil 28–39 mm (1.1–1.5 in) long.[2][3][4]

Taxonomy and naming

Specimens of B. armata were first collected at King George Sound in December 1801 by Robert Brown. Brown published a description of the species in 1810, naming it Dryandra armata in the Transactions of the Linnean Society of London.[5][6] The specific epithet (armata) is from the Latin armatus meaning "armed", in reference to the sharply serrated leaves.[7]

Thirty years later, John Lindley published a purported new species, which he named Dryandra favosa, published in A Sketch of the Vegetation of the Swan River Colony.[8][9] Dryandra favosa was accepted as a species by Carl Meissner in 1845,[10] but declared a taxonomic synonym of D. armata by him in 1856.[11] The latter view was taken by George Bentham his 1870 Flora Australiensis.[12]

In 1996, Alex George published Dryandra armata var. ignicida, thereby invoking the autonym D. armata var. armata. George also refined the synonymy of D. favosa to this subspecies.[3] In 2007, all Dryandra species were transferred to Banksia by Austin Mast and Kevin Thiele and the change is accepted by the Australian Plant Census.[1][13][14]

Distribution and habitat

This variety is widespread in the south-west, mainly between Mount Lesueur, Walpole and the Cape Arid National Park. It grows amongst open woodland and kwongan, usually on rocky soils.[2][3][4]

Conservation status

This variety of B. armata is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[2]

References

  1. 1 2 3 "Banksia aurantia var. armata". Australian Plant Census. Retrieved 30 March 2020.
  2. 1 2 3 "Banksia armata var. armata". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. 1 2 3 George, Alex S. (1999). Flora of Australia (PDF). Vol. 17B. Canberra: Australian Biological Resources Study, Canberra. pp. 268–269. Retrieved 30 March 2020.
  4. 1 2 Cavanagh, Tony; Pieroni, Margaret (2006). The Dryandras. Melbourne: Australian Plants Society (SGAP Victoria); Perth: Wildflower Society of Western Australia. ISBN 1-876473-54-1.
  5. ↑ "Dryandra armata". APNI. Retrieved 30 March 2020.
  6. ↑ Brown, Robert (1810). "On the Proteaceae of Jussieu". Transactions of the Linnean Society of London. 10 (1): 213. Retrieved 30 March 2020.
  7. ↑ Short, Emma; George, Alex (2013). A Primer of Botanical Latin with Vocabulary. Cambridge, U.K.: Cambridge University Press. p. 124. ISBN 9781107693753.
  8. ↑ "Dryandra favosa". APNI. Retrieved 30 March 2020.
  9. ↑ Lindley, John (1840). A Sketch of the Vegetation of the Swan River Colony. London: James Ridgway. p. xxxiii. Retrieved 30 March 2020.
  10. ↑ Meissner, Carl; Lehmann, Johann G.C. (ed.) (1845). Plantae Preissianae. Hamburg: Sumptibus Meissneri. p. 593. Retrieved 30 March 2020. {{cite book}}: |first2= has generic name (help)
  11. ↑ Meissner, Carl; de Candolle, Augustin P. (ed.) (1856). Prodromus systematis naturalis regni vegetabilis. Paris: Sumptibus Sociorum Treuttel et Würtz. p. 469. Retrieved 30 March 2020. {{cite book}}: |first2= has generic name (help)
  12. ↑ Bentham, George; von Mueller, Ferdinand (1870). Flora Australiensis. Vol. 5. London: Lovell Reeve & Co. pp. 567–568. Retrieved 30 March 2020.
  13. ↑ Mast, Austin R.; Thiele, Kevin (2007). "The transfer of Dryandra R.Br. to Banksia L.f. (Proteaceae)". Australian Systematic Botany. 20 (1): 63–71. doi:10.1071/SB06016.
  14. ↑ "Banksia armata var. armata". APNI. Retrieved 30 March 2020.
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