Gingin Wax (Chamelaucium sp. Gingin) Interim Recovery Plan 2003-2008

Gillian Stack and Val English
Department of Conservation and Land Management, WA, 2003

4. Term of plan

This Interim Recovery Plan will operate from February 2003 to January 2008, when it will be reviewed, but will remain in force until withdrawn or replaced.

5. Acknowledgements

The following people have provided assistance and advice in the preparation of this Interim Recovery Plan:

Norm Caporn    Coordinator Mining, Petroleum, Environmental Impact Assessment, the Department's Environmental Protection Branch
John Carter    District Nature Conservation Coordinator, the Department's Perth Hills District
Anne Cochrane    Manager, the Department's Threatened Flora Seed Centre
Amanda Shade    Horticulturalist, Botanic Garden and Parks Authority
Rebecca Walker    Previously the Department's W.A. Threatened Species and Communities Unit
Alan Wright    Conservation Officer, the Department's Perth Hills District
Stefan de Haan    Land Planning Officer, the Department's Swan Coastal District

Thanks also to the staff of the W.A. Herbarium for providing access to Herbarium databases and specimen information, and the Department's Wildlife Branch for assistance.

6. References

Brown, A., Thomson-Dans, C. and Marchant, N. (Eds). (1998) Western Australia's Threatened Flora. Department of Conservation and Land Management, Western Australia.

Department of Conservation and Land Management (1992) Policy Statement No. 44 Wildlife Management Programs. Perth, Western Australia.

Department of Conservation and Land Management (1994) Policy Statement No. 50 Setting Priorities for the Conservation of Western Australia's Threatened Flora and Fauna. Perth, Western Australia.

Department of Conservation and Land Management (1995) Policy Statement No. 29 Translocation of Threatened Flora and Fauna. Perth, Western Australia.

Department of Conservation and Land Management (1998) Western Australian Herbarium FloraBase - Information on the Western Australian Flora. Perth, Western Australia. http://www.calm.wa.gov.au/science/

English, V. and Blyth, J. (1997). Identifying and Conserving Threatened Ecological Communities in the South West Botanical Province. Project N702, Final Report to Environment Australia. Department of Conservation and Land Management. Perth, Western Australia.

Evans, R. and English, V. (1999). Interim Recovery plan number 27, 1999-2002. Chamelaucium sp. Gingin. Department of Conservation and Land Management, Western Australia.

Gibson, N., Keighery, B., Keighery, G., Burbidge, A and Lyons, M. (1994). A floristic survey of the Southern Swan Coastal Plain. Unpublished report for the Australian Heritage Commission prepared by Department of Conservation and Land Management and the Conservation Council of Western Australia (Inc.).

Harris, A. (Unpublished) Declared Rare Flora Survey for Chamelaucium sp. Gingin - Report to Department of Conservation and Land Management, Western Australia. Ff 210-285, 1998F000604.

Marchant, N. (Unpublished) Undescribed taxon from Iopollo Road, south of Gingin referred to as Chamelaucium sp. Gingin - Report to Department of Conservation & Land Management, Western Australia.

World Conservation Union (2000) IUCN red list categories prepared by the IUCN Species Survival Commission, as approved by the 51st meeting of the IUCN Council. Gland, Switzerland.

7. Taxonomic description

Marchant, N. (1998)
(Undescribed taxon from Iopollo Road, south of Gingin referred to as Chamelaucium sp. Gingin)

Shrub with many slender + stiff branches bearing numerous ultimate short axillary shoots 5-20 (-30) mm long. Decurrences strongly and abruptly raised but short, 0.2-0.6 mm long. Leaves glandular, scattered and erect along main branches, but mostly crowded on the numerous short axillary shoots where they are semi-spreading to spreading, narrowly obovate-very narrowly obovate-linear-narrowly elliptic-very narrowly elliptic, 5.4-11.5 mm long, 1.2-1.4 mm wide, 0.6-0.8 mm deep; adaxial surface flat, midrib region sometimes very slightly raised; abaxial surface convex, rounded or angular; leaf blade plano-convex to triquetrous; margins entire; apex mucronate. Petiole 0.5-1.5 mm long, frequently appressed to stem. Inflorescence a small pseudoterminal head on short axillary shoots, sometimes there is a larger pseudoterminal head at the end of main branches; floral leaves flattened, glandular, ovate-triangular-oblong, 1.3-2.2 mm long, 0.9-1.3 mm wide; adaxial surface concave; margins entire to finely uneven, rarely ciliate on the upper half; apex mucronate. Flowers 2-9 in small heads on axillary shoots and up to 20 in the clusters at the end of main branches, 6.6-9.2 mm diameter; disc diameter 3.0-4.2 mm; pedicels 0.8-2.0 mm long. Bracteoles caducous, deeply concave, cucullate, 3.4-4.3 mm tall; midrib region brownish, with scattered raised glands; margins + entire; umbo incurved, narrowly conic-acicular, 0.3-1.0 mm long. Floral tube broadly-very broadly obconic-broadly-very broadly turbinate, glandular, + smooth, obscure-shallowly 10 ribbed, 4.4-5.4 mm long; lower floral tube 2.8-3.4 mm long, not foveolate, shallowly 10-ribbed; upper tube 1.5-2.2 mm long, obscurely or not ribbed. Calyx lobes + erect, ovate, glandular, 2.0-2.8 mm long; margins irregularly denticulate and ciliate, cilia 0.5-2.0 mm long; sinuses broad. Corolla lobes + erect, with fine scattered glands, broadly elliptic-broadly obovate, concave, 4.6-6.0 mm long; margins irregularly denticulate, very sparsely and finely ciliate. Staminal tube 0.6-1.0 mm long, erect or arching inwards. Stamens 10; filaments and staminodes borne at the same level, erect or inarching; filaments narrowly triangular, 0.7-1.1 mm long, slightly constricted just beneath the connective (anthers eventually break off at this constriction); anthers 0.4-0.5 mm diameter; connectives swollen, reddish brown, projecting abaxially and frequently dorsally as a ridge. Staminodes 10, oblong-narrowly ovate, sometimes slightly swollen in the subapical region, 0.9-1.3 mm long; apex obtuse or acute, sometimes bent inwards. Styles narrowly conic, 6.2-7.1 mm long, reaching to the top of corolla lobes. Stigma strongly dilated resembling a swollen disc, finely papillate, 0.5-0.6 mm diameter; hairs from the base of the disc and directed backwards, 0.4-1.0 mm long, tapering to the tip. Ovules 5-8.

Western Australian Herbarium (1998)
Myrtaceae: Chamelaucium

Chamelaucium sp. Gingin (N. Marchant s.n. 4/11/88)
Taxon 13930 is current.

Conservation Status: R

Description:
Open shrub, 1-2 m high. Flowers white; flowering September to December. Soils: white or yellow sand. Habitat: undulating plains, rises.

Addendum

Gingin Wax (Chamelaucium sp. Gingin) Interim Recovery Plan 2003-2008

In adopting this plan under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act), the Minister for the Environment and Heritage has approved the following modifications.

Critical Habitat

The plan identifies a broad area as critical habitat, including buffer zones of a set distance around known populations. The Threatened Species Scientific Committee does not necessarily believe that such an area qualifies as habitat critical to the survival of the species, as defined in the EPBC Act.

Recovery Criteria

For the purposes of reviewing this recovery plan under the EPBC Act, the Recovery Criteria are amended to read as follows:

Criteria for success: The number of individuals within populations and/or the number of populations have increased by 10% or more over the period of the plan's adoption under the EPBC Act.
Criteria for failure: The number of individuals within populations and/or the number of populations have decreased by 10% or more over the period of the plan's adoption under the EPBC Act.