Banksia prionophylla

Source: Wikipedia, the free encyclopedia.
Not to be confused with Banksia prionotes.

Banksia prionophylla

Priority One — Poorly Known Taxa (DEC)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Banksia
Species:
B. prionophylla
Binomial name
Banksia prionophylla

Banksia prionophylla is a

Dryandra in 2005, before being transferred into Banksia
in 2007.

Description

It is a lignotuberous shrub that grows to a height of from 50 to 70 centimetres. It has erect leaves with woolly undersides, nine to fifteen centimetres long, and twelve to eighteen millimetres wide. As with other dryandras, it has a dome-shaped inflorescence. B. prionophylla's inflorescence is terminal on a branch, and consists of around 60 greenish-pink flowers.[1][2]

Taxonomy

See also: Taxonomy of Banksia

First collected by Fred and Jean Hort on 10 October 2001, further collections were made in July 2002 by them, together with

type specimen collected by George, Pieroni and the Horts on 16 July 2002. He named it Dryandra prionotes, from the Greek prion- ("saw") and -otes ("quality of"), in reference to the "saw-like" leaf margins.[4] He considered it to be closely related to D. armata (Prickly Dryandra, now Banksia armata), from which it differs in having longer, erect leaves with a woolly undersurface, a more hairy perianth, and larger follicles.[5]

In February 2007, all Dryandra species were transferred to Banksia by

Banksia cunninghamii). As the plant was not in flower, the record was not considered a valid description and hence the name was available to be used for Dryandra prionotes.[8]

Distribution and habitat

Distribution of B. prionophylla, shown on a map of Western Australia's biogeographic regions.[9]

It is known only from a single population of about 70 plants, located on a

heath, in a quarry reserve in the Geraldton Sandplains bioregion.[2] The precise location has been withheld for conservation reasons, but is described as "S of Cataby Roadhouse, Brand Highway, Western Australia, c. 30°47′S 115°35′E / 30.783°S 115.583°E / -30.783; 115.583.[5]

Ecology

See also: Ecology of Banksia

Very little is known of the ecology of B. prionophylla. Like most other

insects during hot weather;[2] when first collected in 2002, nearly all inflorescences showed some insect damage.[5]

Because only a single, small population is known, it is rated "Priority One - Poorly known taxa" on Western Australia's Department of Environment and Conservation's Declared Rare and Priority Flora List.[5][9]

Cultivation

Very little is known of this species in cultivation. It is assumed to prefer well-drained, heavy soil and an aspect of full or near full sun. Its natural habitat suggests that it would be only moderately frost-tolerant, and will tolerate drought only after it is well established.[2]

References

  1. ISBN 0-643-06454-0
    .
  2. ^
    ISBN 1-876473-54-1
    .
  3. ^ "Dryandra sp. Cataby (F.Hort 1779)". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  4. ^ "Dryandra prionotes A.S.George". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  5. ^ a b c d 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.
  6. doi:10.1071/SB06016
    .
  7. ^ Thiele, K.; Mast, A. R. (2007). "Further recombinations of Dryandra into Banksia". Nuytsia. 16 (2): 475.
  8. ^ Thiele, Kevin R.; Wilson, Paul G. (June 2008). "On the validity of two Mueller names published by Meisner" (PDF). Australian Systematic Botany Society Newsletter (135): 4–5.
  9. ^
    Department of Biodiversity, Conservation and Attractions
    .

External links

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