Persoonia marginata

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Clandulla geebung
Persooniamarginata.jpg
Persoonia marginata in the ANBG
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Persoonia
Species:
P. marginata
Binomial name
Persoonia marginata

Persoonia marginata, commonly known as the Clandulla geebung, is a plant in the family Proteaceae and is endemic to New South Wales. It is low, spreading shrub with elliptic to egg-shaped leaves and small groups of cylindrical yellow flowers.

Contents

Description

Persoonia marginata is a low, spreading shrub which grows to a height of 0.5 m (2 ft) and a width of 1 m (3 ft). Its young branches and leaves are moderately hairy but become glabrous with age. The leaves are arranged alternately and are elliptic to egg-shaped with the narrower end towards the base. They are 20–40 mm (0.8–2 in) long, 6–23 mm (0.2–0.9 in) wide and both surfaces are the same colour. The flowers are arranged in groups of between two and four mostly at the base of leaves. The groups have a stalk up to 6 mm (0.2 in) long, each flower with a moderately hairy pedicel which is 2–7 mm (0.08–0.3 in) long. The flower is composed of four yellow, slightly hairy tepals which are 8–12 mm (0.3–0.5 in) long, which are fused at the base but with the tips rolled back. The central style is surrounded by four yellow anthers which are also joined at the base with the tips rolled back, so that it resembles a cross when viewed end-on. The ovary is densely covered with grey hairs. Flowering occurs in January and February and is followed by fruit which are smooth green drupes. [2] [3] [4]

Taxonomy and naming

Persoonia marginata was first formally described in 1830 by Robert Brown from an unpublished description by Allan Cunningham. Brown's description was published in Supplementum primum Prodromi florae Novae Hollandiae . [1] [5] The specific epithet (marginata) is a Latin word meaning "furnished with a border". [6]

Distribution and habitat

This persoonia grows in woodland and forest on sandy soils derived from sandstone. It is found on the Central Tablelands and Central Coast but is most common in the Clandulla State Forest near Kandos. Small, isolated populations occur in other state forests and national parks including Turon National Park and Gardens of Stone National Park.

Conservation

Populations of Clandulla geebung are under threat from habitat loss and degradation due to forestry activities, road construction and recreational activities. They are also threatened by frequent fires, weed invasion and fungal diseases. The species is listed as "Vulnerable" under the Commonwealth Government Environment Protection and Biodiversity Conservation Act 1999 (EPBC) Act and the New South Wales Biodiversity Conservation Act 2016 . [4] [7]

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References

  1. 1 2 "Persoonia marginata". APNI. Retrieved 22 January 2018.
  2. "Persoonia marginata A.Cunn. ex R.Br". Flora of Australia Online. Department of the Environment and Heritage, Australian Government.
  3. Weston, Peter H. "Persoonia marginata". Royal Botanic Garden Sydney. Retrieved 22 January 2018.
  4. 1 2 "Clandulla geebung - profile". Government of New South Wales Office of Environment and Heritage. Retrieved 22 January 2018.
  5. Brown, Robert (1830). Supplementum primum prodromi florae Novae Hollandiae. New York: H.R. Engelmann, Wheldon & Wesley. p. 16. Retrieved 22 January 2018.
  6. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 157.
  7. "Approved Conservation Advice for Persoonia marginata (Clandulla Geebung)" (PDF). Australian Government Department of the Environment. Retrieved 22 January 2018.