Threatened Flora Extension Surveys King Island 23–26 March 2009
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THREATENED FLORA EXTENSION SURVEYS KING ISLAND 23–26 MARCH 2009 A Report to the Cradle Coast Natural Resource Management Committee Mark Wapstra, Richard Schahinger & Matthew Larcombe June 2009 Department of Primary Industries and Water King Island Threatened Flora Extension Surveys, 23–26 March 2009 i ______________________________________________________ __________________________ ACKNOWLEDGEMENTS Shelley Davison (Parks and Wildlife Service), provided field assistance and technical support. Graeme and Margaret Batey provided directions to some threatened flora populations. Several private property owners kindly granted access to threatened plant populations on their properties and allowed us to undertake additional surveys, while Heather Coleman (KINRMG) assisted with landowner contacts. Alex Buchanan and Matthew Baker of the Tasmanian Herbarium assisted with plant identifications, and Kim Hill (Tasmanian Herbarium) provided collection information. Michael Garrett confirmed the identification of Tmesipteris parva, and Dwayne Estes assisted with the confirmation of the identification of Gratiola pubescens. This project was funded by the Cradle Coast Authority through Grant No. C13003A ‘Cradle Coast Threatened Flora Priority Actions’. Citation: Wapstra, M., Schahinger, R., and Larcombe, L. (2009). Threatened Flora Extension Surveys, King Island 23–26 March 2009. A report to the Cradle Coast Natural Resource Management Committee. Threatened Species Section, Department of Primary Industries and Water, Hobart. ABBREVIATIONS CLAC Crown Land Assessment and Classification project (DPIW) DPIW Tasmanian Department of Primary Industries and Water 1 EPBC Act Commonwealth Environment Protection and Biodiversity Conservation Act 1999 KINRMG King Island Natural Resource Management Group PWS Tasmanian Parks and Wildlife Service RMC Resource Management and Conservation Division (DPIW) RTBG Royal Tasmanian Botanical Gardens TSP Act Tasmanian Threatened Species Protection Act 1995 TSS Threatened Species Section, Biodiversity Conservation Branch (DPIW) Plant nomenclature follows Buchanan (2008), and common names Wapstra et al. (2005.). All grid coordinates in the text are referenced to the GDA94 horizontal map datum, grid zone 55G. Cover photographs. Clockwise from top right: Pneumatopteris pennigera (Ettrick River), Tmesipteris parva (‘Crows Creek’), Gratiola pubescens (Saltwater Creek), Sea Elephant River, Pimelea axiflora (Seal River) and Cassytha pedicellosa habitat (Lavinia State Reserve). All photographs by Mark Wapstra unless otherwise stated. 1 Formerly the Department of Primary Industries, Water and Environment (DPIWE). King Island Threatened Flora Extension Surveys, 23–26 March 2009 ii ______________________________________________________ __________________________ CONTENTS 1. BACKGROUND ....................................................................................................................... 1 2. RESULTS – TARGET SPECIES .............................................................................................2 Austrocynoglossum latifolium (forest houndstongue)............................................................................................2 Elaeocarpus reticulatus (blueberry ash)..................................................................................................................5 Hedycarya angustifolia (australian mulberry).........................................................................................................6 Pimelea axiflora subsp. axiflora (bootlace bush)..................................................................................................7 Pneumatopteris pennigera (lime fern).................................................................................................................... 13 Tmesipteris parva (small forkfern)...................................................................................................................... 17 3. RESULTS – OTHER SPECIES OF INTEREST.................................................................. 20 Cassytha pedicellosa (stalked dodder-laurel)....................................................................................................... 20 Dysphania glomulifera subsp. glomulifera (pigweed)........................................................................................... 22 Gratiola pubescens (hairy brooklime).................................................................................................................. 23 Ozothamnus rosmarinifolius (swamp everlastingbush)...................................................................................... 24 Persicaria decipiens (slender knotweed).............................................................................................................. 25 Phytolacca octandra (red-ink weed)..................................................................................................................... 27 Solanum opacum (greenberry nightshade)......................................................................................................... 30 Tmesipteris obliqua (common forked fern)....................................................................................................... 31 4. ON-GROUND ACTIONS...................................................................................................... 32 Hypolepis distans (scrambling groundfern)....................................................................................................... 32 Pterostylis cucullata subsp. cucullata (leafy greenhood)..................................................................................... 35 5. SUMMARY.............................................................................................................................. 38 6. REFERENCES....................................................................................................................... 41 Appendix 1. King Island threatened flora surveys, 23–26 March 2009........................................... 42 Appendix 2. King Island flora survey summary, 2005–2009........................................................... 43 Figure 1. Distribution of Austrocynoglossum latifolium along the upper reaches of the Seal River.....................2 Figure 2. Distribution of Elaeocarpus reticulatus on King Island............................................................................5 Figure 3. Distribution of Hedycarya angustifolia on King Island............................................................................6 Figure 4. Distribution of Pimelea axiflora subsp. axiflora on King Island............................................................7 Figure 5. Distribution of Pimelea axiflora subsp. axiflora near Naracoopa...........................................................8 Figure 6. Distribution of Pimelea axiflora subsp. axiflora along the Seal River....................................................9 Figure 7. Distribution of Pimelea axiflora in the Reekara–Sea Elephant Hills area......................................... 10 Figure 8. Distribution of Pimelea axiflora in the Yates Creek–Fraser River area............................................. 10 King Island Threatened Flora Extension Surveys, 23–26 March 2009 iii ______________________________________________________ __________________________ Figure 9. Distribution of Pneumatopteris pennigera along the Ettrick River....................................................... 13 Figure 10. Distribution of Tmesipteris parva and Tmesipteris obliqua along ‘Crows Creek’............................... 18 Figure 11. Threatened & significant flora in the Saltwater Creek area............................................................ 20 Figure 12. Distribution of Dysphania glomulifera subsp. glomulifera in Australia................................................ 22 Figure 13. Distribution of Ozothamnus rosmarinifolius in Tasmania.................................................................... 24 Figure 14. Distribution of Persicaria decipiens along Yarra Creek........................................................................ 25 Figure 15. Distribution of Persicaria decipiens in Tasmania.................................................................................. 26 Figure 16. Distribution of Phytolacca octandra near the Fraser River.................................................................. 27 Figure 17. Distribution of Phytolacca octandra in Australia................................................................................... 29 Figure 18. Distribution of Solanum opacum on King Island................................................................................ 30 Figure 19. Distribution of Hypolepis distans at Deep Lagoons............................................................................ 32 Figure 20. Distribution of Pterostylis cucullata in the Yellow Rock area............................................................ 35 Figure 21. Yellow Rock land system & Pterostylis cucullata records. .................................................................. 37 Table 1. Age structure of the Pimelea axiflora subpopulation along the Seal River......................................... 11 Table 2. Population details of Pneumatopteris pennigera along the Ettrick River, March 2009........................ 14 Table 3. Morphological details of Tmesipteris parva individuals along Crows Creek....................................... 17 Table 4. Summary of threatened