Ex Situ Conservation of Threatened South Australian Plants Thai Te, Dan Duval, Michael Thorpe & Phil Ainsley Botanic Gardens of Adelaide July 2009 A project supported by the South Australian Complementary State NRM program 1 Summary In 2008 the Botanic Gardens of Adelaide Seed Conservation Centre was provided with funds through the South Australian Complementary State NRM program to undertake a project focused on the ex situ conservation of threatened native plant species. A list of 50 priority species was identified (see Table 1), covering seven of South Australia’s NRM regions. The aim of the project was to gather field data about these species, where possible collect seed for storage in a long-term conservation seed bank and raise awareness of these species at both the State and Regional level. During the project, field searches were undertaken for all 50 of the identified species, resulting in seed being successfully collected and banked from 32 species. This report provides a summary of the activities undertaken for each species. 2 Table 1: Summary of Species Information and Activities Undertaken During this Project Species Family NPWSA conservation SA NRM region(s) where species occurs Searches Seed rating undertaken collected Acacia spilleriana Leguminosae Vulnerable Northern& Yorke 9 9 Acanthocladium dockeri Compositae Endangered Northern & Yorke 9 9 Amphibromus pithogastrus Gramineae Rating not yet determined Adelaide & Mt Lofty Ranges 9 9 Asperula euryphylla var. tetraphylla Rubiaceae Vulnerable Kangaroo Island 9 8 Beyeria subtecta Euphorbiaceae Endangered Kangaroo Island 9 9 Bossiaea ensata Leguminosae Vulnerable Eyre Peninsula 9 8 Brachyscome diversifolia Compositae Endangered Adelaide & Mt Lofty Ranges 9 8 Brachyscome melanocarpa Compositae Vulnerable SA Murray-Darling and SA Arid Lands 9 8 Brachyscome muelleri Compositae Endangered SA Arid Lands 9 9 Brachyscome xanthocarpa Compositae Rare Eyre Peninsula 9 9 Caesia sp. “Muddy Flat” Liliaceae Rating not yet determined South East 9 9 Cardamine gunnii Cruciferae Vulnerable South East 9 9 Citrus glauca Rutaceae Vulnerable Northern & Yorke and SA Arid Lands 9 8 Correa aff. aemula “Kaiser Stuhl” Rutaceae Rating not yet determined Adelaide & Mt Lofty Ranges 9 9 Cullen parvum Leguminosae Vulnerable Adelaide & Mt Lofty Ranges, SA Murray- 9 9 Darling Basin and Northern & Yorke Daviesia sejugata Leguminosae Endangered Northern & Yorke 9 8 Desmocladus diacolpicus Restionaceae Vulnerable Eyre Peninsula and Kangaroo Island 9 9 Dodonaea petiolaris Sapindaceae Rating not yet determined SA Arid Lands 9 9 Eriocaulon australasicum Eriocaulaceae Endangered South East 9 8 Eriocaulon carsonii Eriocaulaceae Endangered SA Arid Lands 9 9 Eurychorda complanata Restionaceae Vulnerable Kangaroo Island and South East 9 9 Gentinella gunniana Gentianaceae Vulnerable South East 9 9 Goodenia gracilis Goodeniaceae Rating not yet determined South East 9 8 Goodenia micrantha Goodeniaceae Rating not yet determined Kangaroo Island 9 9 Haeckeria cassiniformis Compositae Rare Eyre Peninsula and Northern & Yorke 9 9 Helichrysum rutidolepis Compositae Endangered Adelaide & Mt Lofty Ranges and Northern & 9 9 3 Yorke Hibbertia sessiliflora Dilleniaceae Endangered South East 9 8 Hydrocotyle diantha Umbelliferae Endangered Kangaroo Island and Northern & Yorke 9 8 Juncus prismatocarpus Juncaceae Endangered Adelaide & Mt Lofty Ranges and SA Murray- 9 9 Darling Basin Leptomeria preissiana Santalaceae Endangered Eyre Peninsula 9 8 Leptorhynchos orientalis Compositae Rare Adelaide & Mt Lofty Ranges, Northern & 9 8 Yorke and South East Leptorhynchos scaber Compositae Rare Eyre Peninsula, Northern & Yorke, SA 9 9 Murray-Darling Basin and South East Microlepidium alatum Cruciferae Vulnerable Eyre Peninsula 9 9 Olax obcordata Olacaceae Rare Eyre Peninsula and Kangaroo Island 9 9 Olearia suffructicosa Compositae Endangered South East 9 9 Phebalium glandulosum ssp. macrocalyx Rutaceae Endangered Eyre Peninsula and Northern & Yorke 9 9 Phebalium squamulosum ssp. squamulosum Rutaceae Endangered South East 9 9 Philotheca difformis ssp. difformis Rutaceae Vulnerable SA Arid Lands 9 8 Pimelea hewardiana Thymelaeaceae Vulnerable South East 9 8 Polypogon tenellus Gramineae Vulnerable Northern & Yorke 9 8 Rhodanthe anthemoides Compositae Endangered Northern & Yorke 9 9 Spyridium erymnocladum Rhamnaceae Vulnerable Eyre Peninsula 9 8 Spyridium tricolor Rhamnaceae Vulnerable Eyre Peninsula 9 8 Swainsona murrayana Leguminosae Vulnerable SA Arid Lands 9 9 Thysanotus nudicaulis Liliaceae Endangered Eyre Peninsula 9 8 Tricostularia pauciflora Cyperaceae Endangered Adelaide & Mt Lofty Ranges, Kangaroo 9 9 Island and South East Triglochin turriferum Juncaginaceae Vulnerable South East 9 9 Veronica parnkalliana Scrophulariaceae Endangered Eyre Peninsula and Northern & Yorke 9 9 Viola betonicifolia ssp. betonicifolia Violaceae Endangered Adelaide & Mt Lofty Ranges and South East 9 9 Wurmbea uniflora Liliaceae Endangered Adelaide & Mt Lofty Ranges and South East 9 9 4 Acknowledgements This project was made possible through funds provided by the South Australian Complementary State NRM program. Special thanks are extended to Troy Horn and Bryan Haywood (Forestry SA, Mt Gambier), Kieran ‘King’ Brewer (South Australian Indigenous Flora), Tim Jury (Threatened Plant Action Group), Randall Johnson (Department for Environment and Heritage), SA Water for access to reserves, the State Herbarium of South Australia for access and permission to cite plant records and the many private landowners/managers that granted access to properties. The Royal Botanic Gardens Kew (UK) Millennium Seed Bank has been working in partnership with the Seed Conservation Centre since 2003, and where possible seed storage for species collected during this project has been duplicated at this facility. 5 Table of Contents Summary.................................................................................................................................... 2 Acknowledgements.................................................................................................................... 5 Table of Contents....................................................................................................................... 6 Background................................................................................................................................8 Methodology............................................................................................................................... 8 Acacia spilleriana ....................................................................................................................... 9 Acanthocladium dockeri ............................................................................................................12 Amphibromus pithogastrus........................................................................................................15 Asperula tetraphylla ..................................................................................................................18 Beyeria subtecta .......................................................................................................................21 Bossiaea ensata........................................................................................................................24 Brachyscome diversifolia...........................................................................................................28 Brachyscome melanocarpa.......................................................................................................30 Brachyscome muelleri...............................................................................................................32 Brachyscome xanthocarpa........................................................................................................34 Caesia sp. “Muddy Flat” ............................................................................................................36 Cardamine gunnii......................................................................................................................38 Citrus glauca .............................................................................................................................41 Correa aff. aemula “Kaiser Stuhl”..............................................................................................44 Cullen parvum...........................................................................................................................46 Daviesia sejugata......................................................................................................................49 Desmocladus diacolpicus..........................................................................................................52 Dodonaea petiolaris ..................................................................................................................57 Eriocaulon australasicum ..........................................................................................................59 Eriocaulon carsonii....................................................................................................................61 Eurychorda complanata ............................................................................................................64 Gentianella gunniana ................................................................................................................66 Goodenia gracilis ......................................................................................................................68