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To Name Those Lost: Assessing Extinction Likelihood in the Australian Vascular Flora J.L

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To Name Those Lost: Assessing Extinction Likelihood in the Australian Vascular Flora J.L To name those lost: assessing extinction likelihood in the Australian vascular flora J.L. SILCOCK, A.R. FIELD, N.G. WALSH and R.J. FENSHAM SUPPLEMENTARY TABLE 1 Presumed extinct plant taxa in Australia that are considered taxonomically suspect, or whose occurrence in Australia is considered dubious. These require clarification, and their extinction likelihood is not assessed here. Taxa are sorted alphabetically by family, then species. No. of Species EPBC1 Last collections References and/or pers. (Family) (State)2 Notes on taxonomy or occurrence State Bioregion/s collected (populations) comms Trianthema cypseleoides Sydney (Aizoaceae) X (X) Known only from type collection; taxonomy needs to be resolved prior to targeted surveys being conducted NSW Basin 1839 1 (1) Steve Douglas Frankenia decurrens (Frankeniaceae) X (X) Very close to F.cinerea and F.brachyphylla; requires taxonomic work to determine if it is a good taxon WA Warren 1850 1 (1) Robinson & Coates (1995) Didymoglossum exiguum Also occurs in India, Sri Lanka, Thailand, Malay Peninsula; known only from type collection in Australia by Domin; specimen exists, but Field & Renner (2019); Ashley (Hymenophyllaceae) X (X) can't rule out the possibility that Domin mislabelled some of these ferns from Bellenden Ker as they have never been found again. QLD Wet Tropics 1909 1 (1) Field Hymenophyllum lobbii Domin specimen in Prague; widespread in other countries; was apparently common and good precision record, so should have been Field & Renner (2019); Ashley (Hymenophyllaceae) X (X) refound by now if present QLD Wet Tropics 1909 1 (1) Field Avon Wheatbelt; Esperance Known from four collections between 1844 and 1892; in her unpublished conspectus of Hemigenia, Barbara Rye included H. obtusa in Plains; Swan Hemigenia obtusa Not listed the H. incana complex. This is difficult taxonomic terrain; its status should be considered problematic until species boundaries within Coastal Leigh et al. (1984); Mike (Lamiaceae) (Not listed) that complex are resolved following future revision. WA Plain 1892 4 (?) Hislop; Greg Guerin Lindsaea pulchella var. Not listed Field & Renner (2019); Ashley blanda (Lindsaeaceae) (Not listed) Specimen in Smithsonian Herbarium, unknown collector and considered a bogus record - probably did not occur in Australia QLD Wet Tropics 1926 1 (1) Field Huperzia serrata Field & Renner (2019); Ashley (Lycopodiaceae) X (X) Widespread tropical species; this record has no specimen and its occurrence in Australia (recorded by Domin) is considered dubious QLD Wet Tropics 1909 0 (1) Field Ross (1987); Rigel Jensen; Musa fitzalanii (Musaceae) X (X) Known only from type collection which is low precision and only a fragment and photo held in the Herbarium QLD Wet Tropics 1875 1 (1) Keith McDonald Very close to A.fornicatus, which is remains common in coastal heath remnants in the Burleigh Heads area; A.ledwardii is treated as a South Acianthus ledwardii synonym of A.fornicatus in AVH and ALA, as it is difficult to Justify recognition ofA. ledwardii on morphological grounds alone (DNA Eastern Rupp (1938); Bill O'Donnell; (Orchidaceae) X (X) sequencing may shed further light on this) QLD Queensland 1934 2 (1) Mark Clements South East Coastal Plain; Not listed Currently considered a valid taxon, but more work required to elucidate species in this complex, including C. grampiana and C. Victorian Caladenia magnifica (X) oenochila VIC Midlands 1992 6 (6) Neville Walsh South Eastern Caladenia thysanochila EN (X) Described based on two plants, only ever seen once and a single specimen lodged VIC Highlands 1991 1 (1) Neville Walsh Eyre York Block; Caladenia xantholeuca Flinders (Orchidaceae) EN (EN) Not seen since 1982 despite targeted searching; could be taxonomic issues based on photos - very similar to a co-occurring species. SA Lofty Block 1982 5 (2) Doug Bickerton; Bob Bates Diuris bracteata Sydney (Orchidaceae) X (EN) Diuris praecox may be a synonym and there is uncertainty over the identification of recent collections NSW Basin Pre-1889 1 (1) Peter Weston South Prasophyllum morganii Eastern (Orchidaceae) VU (X) Species collected recently looks like Prasophyllum morganii, but taxonomic disagreement VIC Highlands 1933 1 (1) Neville Walsh Prasophyllum suttonii s.s. Australian (Orchidaceae) EN (X) Taxonomic uncertainty - extremely close to P.alpestris, and Kuiter (2017) makes a compelling case for the two being synonymous VIC Alps 1902 1 (1) Kuiter (2017); Neville Walsh Possibly Tasmanian Deyeuxia lawrencei Northern Wapstra et al. (2006); Rod (Poaceae) X (X) Taxonomic uncertainty - very close to Deyeuxia quadriseta and known only from poor condition collections TAS Midlands 1831 1 (1) Fensham; Jamie Kirkpatrick Some uncertainty - Wapstra et al. (2006) qualify a statement about this species with "(if indeed the species actually exists"; described ?Tasmanian Curtis & Morris (1994); Festuca archeri (Poaceae) X (X) from a single small fragment TAS Midlands Pre-1900 1 (1) Wapstra et al. (2006) Lemmaphyllum accedens Domin specimen in Prague; should have been found by now if it was still in rainforest around Lake Eacham; unable to rule out labelling (Polypodiaceae) X (X) mistake on these specimens QLD Wet Tropics 1909 1 (1) Ashley Field. No. of Species EPBC1 Last collections References and/or pers. (Family) (State)2 Notes on taxonomy or occurrence State Bioregion/s collected (populations) comms Sound (widespread tropical species), but there is only an illustration and empty folder in Prague; Chinnock records that he has seen Tmesipteris lanceolata specimen. There are other Tmesipteris on Bellenden Ker, and they were not named at the time; thus its occurrence in Australia is (Psilotaceae) X (X) considered dubious. QLD Wet Tropics 1909 1 (1) Ashley Field Also known from the Philippines, Indonesia and New Guinea; known in Australia from two collections (Stephen Johnson, 1891, Monogramma dareicarpa specimen in Kew - several specimens on same page, but all M.dareicarpa; Domin specimen in Prague but labelling problem). Species (Pteridaceae) X (X) could be expected from here; not clear why it hasn't turned up in surveys QLD Wet Tropics 1909 2 (2) Ashley Field 1Environment Protection and Biodiversity Conservation Act. 2X, Extinct; EN, Endangered; VU, Vulnerable. SUPPLEMENTARY TABLE 2 Australia’s presumed extinct plant taxa, taxonomic and occurrence notes, collection history, surveys, threats and habitat modification, and extinction likelihood as assessed using the key (see main text). Conservation advice, taxonomic descriptions, Recovery Plans and species profiles (including in Leigh & Briggs, 1984, and regional reports in Western Australia) were consulted for all taxa; references other than these sources are noted in the References column. Taxa are ordered by family then species name. % of No. of Record suitable Habitat Detectability Species EPBC Last collections precision habitat modification/ Extinction References and/ (Family) (State)1 Taxonomic notes State Bioregion/s Habitat Lifeform collected (popns) (km2) Searched for? surveyed threats likelihood Notes or pers. comms Unknown Sound (although (assumed to be No targeted close to, and salt lake surveys Ptilotus previously Unknown margins, but documented, but Presumed extinct, but very caespitulosus Not confused with (possibly Avon little evidence Perennial well-collected Possibly low precision record to guide (Amaranthaceae) listed (X) P.fascicularis) WA Wheat-belt) for this) forb Pre-1900 1 (1) >1000 region >70 Moderate Moderate extinct targeted surveys Greg Keighery Low (two property names Several targeted given only, searches made in Einasleigh and large area since species Ptilotus senarius Not A recently- Uplands; Gulf Grassy hills; tea- Perennial properties, recognised in Low to moderate Possibly (Amaranthaceae) listed (X) described species QLD Plains tree forest forb 1967 2 (2) c.200) 2008 <50 Moderate (cattle grazing) extant Bean (2014) Potential habitat on the eastern side of the coastal plain and scarp Ptilotus has been sericostachyus Not Swan Coastal Darling Scarp extensively Gibson (2016) recommends subsp. roseus listed Plain; Jarrah from Perth to Perennial Low (best surveyed Possibly that this taxon be nominated (Amaranthaceae) (P1) Sound WA Forest PinJarra forb 1906 8 (8) c.200) from 1992–2000 >70 Moderate Moderate to high extinct for listing as Presumed Extinct Gibson (2016) Lowland rainforest Some surveys (Stone, Barron undertaken, but and Endeavour locations of Marsdenia Rivers; and historical Moderate (but araujacea Rockingham Bay collections not vast areas of Possibly Paul Forster; Bob (Apocynaceae) X (X) Sound QLD Wet Tropics near Cardwell) Vine 1893 4 (4) Fair (20) very precise <50 country) Moderate extant Jago; Rigel Jensen Accepted, but the type series only contains two fruits and appears No targeted intermediate surveys in Further surveys after winter between C. September after rain recommended; Bybera lappulacea and C. winter rain, but the small property has been scapigera, numerous cleared, but this is also the suggesting hybrid collections from name for a district, which fits Calotis origin - cannot be Sandy soil in roadsides and better with White's location glabrescens Not resolved without Brigalow Belt mixed open Perennial State Forests in Moderate (large Possibly description 'between John Neldner; (Asteraceae) listed (X) further specimens QLD South eucalypt forest forb 1944 1 (1) 300 area <50 Moderate uncleared areas) extant Inglewood and Millmerran' Ailsa Holland Sound (only Drummond Apparently wet Many detailed
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