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Species profile—Omphalea celata

Classification

Plantae (plants) → Equisetopsida (land plants) → EuphorbiaceaeOmphalea celata

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Species details

Kingdom
Plantae (plants)
Class
Equisetopsida (land plants)
Family
Euphorbiaceae
Scientific name
Omphalea celata P.I.Forst.
WildNet taxon ID
6632
Nature Conservation Act 1992 (NCA) status
Vulnerable
Environment Protection and Biodiversity Conservation Act 1999 (EPBC) status
Vulnerable
Back on Track (BoT) status
Low
Conservation significant
Yes
Confidential
No
Endemicity
Native
Pest status
Nil
Short Notes
two sheets plus spirit, status annotated by author
Description
Omphalea celata is a small tree growing to 12 m high with glossy, cream coloured bark. The leaves are arranged alternately along the branchlets, on stalks 20 to 75 mm long. The leaf blades are 45 to 120 mm long and 16 to 80 mm wide. The leaves are broadest below the centre, hairless, with 8 to 14 lateral veins diverging on each side of the midrib and running approximately parallel to each other, with a network of minor veins between them. The upper leaf surface is dark grey-green with obscure venation, the lower surface pale grey-green with distinct venation. The leaf tip gradually tapers to a point; the base is gradually tapering or wedge-shaped.
This species has separate male and female flowers on the same plant. Inflorescences are branched, containing male and female flowers, with male flowers greatly outnumbering the female. Both male and female flowers lack petals and have green sepals 2 to 3 mm long. The fruit are approximately spherical, two or three-lobed with a pointed apex, 50 to 60 mm long by 50 to 60 mm wide, thick-walled, with a fleshy outer layer and a woody inner layer (Forster, 1995).
Omphalea celata is a tree with penninerved foliage whereas O. papuana and O. queenslandica are both scandent lianes with palminerved foliage (Forster, 1995).
This species was formerly known as Aleurites sp. (Hazlewood Gorge, S.G. Pearson SP439) (Forster, 1995). It is a host-plant for the endemic Australian day-flying Zodiac Moth (Alcides zodiaca) (Forster and Sankowsky 1995).
Map
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Distribution
Omphalea celata has a very restricted distribution in central Queensland. It is known from two localities; Hazlewood Gorge west of Mackay and on Gloucester Island north of Proserpine. This species is reserved in Gloucester Island National Park and Homevale National Park (Queensland Herbarium, 2012).
Distributional limits
-19.9901106, 148.4555555
-21.4586159, 148.5427554
Range derivation
Range derived from extent of the taxon's verified records
Habitat
Omphalea celata occurs in fragmented semi evergreen vine thicket or araucarian microphyll vine forest. Recorded along watercourses in steep sided gorges and gullies on weathered metamorphic or granitic soils (Queensland Herbarium, 2012). Associated species include Eucalyptus raveretiana, E. tereticornis, Lysiphyllum hookeri and Ficus opposita (Queensland Herbarium, 2012).
Reproduction
Omphalea celata has been reported flowering from June to December and fruiting from December to February (Queensland Herbarium, 2012).
Threatening processes
The main potential threats to Omphalea celata include invasion by exotic weeds, such as Lantana (Lantana camara), and damage to plants from landslide at the Hazelwood Gorge population (Forster, 1995).
Status notes
Omphalea celata is listed as Vulnerable under the Queensland Nature Conservation Act, 1992.
Omphalea celata is listed as Vulnerable under the Commonwealth Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act)
Management recommendations
Regional and local priority actions to support the recovery of Omphalea celata are outlined by DSEWPC (2012). A summary of these include: avoid habitat loss, disturbance and modification (e.g. monitor known populations to identify key threats; monitor the of recovery, including the effectiveness of management actions and the need to adapt them if necessary); control invasive weeds (e.g. develop and implement a management plan, in conjunction with existing local and national weed management plans, for the control of Lantana; identify and remove weeds in the local area, which could become a threat to O. celata, using appropriate methods); increase conservation information (e.g. raise awareness of O. celata within the local community); enable recovery of additional sites and/or populations (e.g. undertake appropriate seed collection and storage; investigate options for linking, enhancing or establishing additional populations).
Notes
Occurs in the following Queensland pastoral districts: North Kennedy, South Kennedy.
References
Department of Sustainability, Environment, Water, Population and Communities (DSEWPC) (2012). Omphalea celata in Species Profile and Threats Database, Department of Sustainability, Environment, Water, Population and Communities, Canberra. Accessed 29/05/2012. http://www.environment.gov.au/sprat.
Forster, P.I. and Sankowsky, G. (1995). New Euphorbiaceae host records for the Zodiac Moth (Alcides zodiaca (Lepidoptera: Uraniidae)). The Australian Entomologist. 22 (1):15.
Forster, P.I. (1995). Omphalea celata, a new species of Euphorbiaceae from central Queensland. Austrobaileya 4 (3): 1-5.
Halford, D. (1995). Omphalea celata Species Management Profile. Department of Natural Resources, Brisbane.
Queensland Herbarium (2012). Specimen label information. Queensland Herbarium. Accessed 20/03/2012.
Profile author
Ronald Booth (10/07/2012)

Other resources

Species Profile and Threats Database (SPRAT)
The Australasian Virtual Herbarium (AVH)
Atlas of Living Australia

Data source

This profile data is sourced from the QLD Wildlife Data API using the Get species by ID function used under CC-By 4.0
https://apps.des.qld.gov.au/species/?op=getspeciesbyid&taxonid=6632

This information is sourced from the WildNet database managed by the Queensland Department of Environment and Science.

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Licence
Creative Commons Attribution 4.0 International (CC BY 4.0)
Last updated
23 October 2019
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