Pentagonia orthoneura Standl.
Taxonomy & Nomenclature
Conservation Status
Missing
Last record: 1860's
IUCN RedList status: Critically Endangered (Possibly Extinct)
Distribution
Ecuador
Biology & Ecology
Hypodigm
Media
References
Jaramillo, T., Cornejo, X. & Pitman, N. 2004. Pentagonia orthoneura. The IUCN Red List of Threatened Species 2004: e.T46095A11030576. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T46095A11030576.en. Downloaded on 27 December 2015.
Pavetta oblanceolata Bremek.
Taxonomy & Nomenclature
Conservation Status
Missing (Nayar & Sastry, 1990:227)
Last (and only) record: 1847 (Nayar & Sastry, 1990:227)
Distribution
Palghat & Attraimalai hills, Kerala, India
Biology & Ecology
Hypodigm
Media
References
Nayar, M. P. and Sastry, A. R. K. (eds.). (1990, reprinted 2000). Red Data Book of Indian Plants. Volume 3. Calcutta: Botanical Survey of India. 271 pp. Illus., col. illus. [p. 227-228]
Rao, C. Kameswara, Geetha, B. L. and Suresh, Geetha. (2003). Red List of Threatened Vascular Plant Species in India: Compiled from the 1997 IUCN Red List of Threatened Plants. ENVIS Centre on Floral Diversity, Botanical Survey of India, Kolkata. xxiv + 144 pp. [automatic download]
https://vanishingflora.proboards.com/thread/2020/pavetta-oblanceolata
Pausinystalia brachythyrsum (K.Schum.) W.Brandt (1922:66)
Taxonomy & Nomenclature
Synonym/s: Corynanthe brachythyrsus K.Schum. in Notizbl. Bot. Gart. Berlin-Dahlem 3: 95 (1901); Pausinystalia macroceras f. brachythyrsum (K.Schum.) N.Hallé in Fl. Gabon 12: 71 (1966)
This taxon is possibly a junior synonym of Corynanthe macroceras (Murphy et al., 2023:16; POWO, 2024).
Conservation Status
Last record: 1746 (World Conservation Monitoring Centre, 1998); 1898 (Schumann, 1901; Murphy et al., 2023:16)
Since Rediscovered (Onana et al., 2011; Humphreys et al., 2019) if valid (see Murphy et al., 2023:16)
IUCN RedList status: Extinct
Distribution
Bipinde, Cameroon (western)
Biology & Ecology
Hypodigm
Media
References
Baillie, Jonathan E. M. and Butcher, Ellen R. (2012). Priceless or Worthless? The world’s most threatened species. London, UK: Zoological Society of London.
Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
Humphreys, Aelys M., Govaerts, Rafaël, Ficinski, Sarah Z., Lughadha, Eimear Nic and Vorontsova, Maria S. (2019). Global dataset shows geography and life form predict modern plant extinction and rediscovery. Nature Ecology & Evolution 3: 1043-1047. https://doi.org/10.1038/s41559-019-0906-2 [Supplementary Dataset 1]
Murphy, Bruce, Onana, Jean Michel, Burgt, Xander M. van der, Ngansop Tchatchouang, Eric, Williams, Jenny, Tchiengué, Barthélemy and Cheek, Martin. (2023). Important Plant Areas of Cameroon. Royal Botanic Gardens, Kew. 302 pp. [automatic download]
Oldfield, Sara, Lusty, Charlotte and MacKinven, Amy (compilers). (1998). The World List of Threatened Trees. Cambridge, U.K.: World Conservation Press. 650 pp.
Onana, Jean Michel, Cheek, Martin and Pollard, Benedict John. (2011). Red Data Book of the Flowering Plants of Cameroon. Kew: Royal Botanic Gardens. 578 pp.
POWO. (2024). Plants of the World Online (online resource). Facilitated by the Royal Botanic Gardens, Kew, United Kingdom. Available at: https://powo.science.kew.org/ [Accessed 18 June 2024]
Schumann, Karl Moritz. (1901). Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahlem 3: 95-96.
Stoffelen, P., Robbrecht, E. and Smets, E. (1996). A revision of Corynanthe and Pausinystalia (African Rubiaceae-Coptosapelteae). Botanical Journal of the Linnean Society 120(4): 287-325.
World Conservation Monitoring Centre. (1998). Pausinystalia brachythyrsum. The IUCN Red List of Threatened Species 1998: e.T36157A9978900. http://dx.doi.org/10.2305/IUCN.UK.1998.RLTS.T36157A9978900.en. Downloaded on 17 September 2016.
Pachycarpus rostratus N.E.Br.
Taxonomy & Nomenclature
Conservation Status
Missing
Distribution
Nkandla district, KwaZulu-Natal, South Africa
Biology & Ecology
Hypodigm
Media
References
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Le Roux, Johannes J., Hui, C., Castillo, M. L., Iriondo, J. M., Keet, J.-H., Khapugin, A. A., Médail, F., Rejmánek, M., Theron, G. Yannelli, F. A. and Hirsch, H. (2019). Recent Anthropogenic Plant Extinctions Differ in Biodiversity Hotspots and Coldspots. Current Biology 29(17): 2912-2918.e2. https://doi.org/10.1016/j.cub.2019.07.063
Nicholas, A. 1999. A taxonomic reassessment of the subtribe Asclepiadinae (Asclepiaceae) in Southern Africa. Unpublished Ph.D., University of Durban-Westville, Durban.
Nicholas, A. & von Staden, L. 2015. Pachycarpus rostratus N.E.Br. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2017/06/08.
Raimondo, D., von Staden, L., Foden, W., Victor, J.E., Helme, N.A., Turner, R.C., Kamundi, D.A. and Manyama, P.A. 2009. Red List of South African Plants. Strelitzia 25. South African National Biodiversity Institute, Pretoria.
Scott-Shaw, C.R. 1999. Rare and threatened plants of KwaZulu-Natal and neighbouring regions. KwaZulu-Natal Nature Conservation Service, Pietermaritzburg.
Smith, D.M.N. 1988. A revision of the genus Pachycarpus in southern Africa. South African Journal of Botany 54(5):399-439.
Opercularia acolytantha Diels, 1905:547
Esperance dog weed
Taxonomy & Nomenclature
Conservation Status
Last (and only) record: 1901 (Silcock et al., 2019:SM:19)
Rediscovered in 1968 (Silcock et al., 2019:SM:19)
Still listed as Extinct by (Humphreys et al., 2019)
Distribution
near Esperance, Western Australia, Australia
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Diels, F. L. E. & E. Pritzel (1904). Fragmenta Phytographiae Australiae occidentalis: Beitrage zur Kenntnis der Pflanzen Westaustraliens, ihrer Verbreitung und ihrer Lebensverhaltnisse. Botanische Jahrbucher fur Systematik. 35: ??-??.
Other references:
Brown, A., C. Thomson-Dans & N. Marchant, eds. (1998). Western Australia's Threatened Flora. Como, Western Australia: Department of Conservation and Land Management.
Department of the Environment. (2015). Opercularia acolytantha in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: http://www.environment.gov.au/sprat. Accessed Sat, 7 Feb 2015 13:38:43 +1100.
Craig, Gillian F. and Coates, David J. (2001). Declared Rare and Poorly Known Flora in the Esperance District. Western Australian Wildlife Management Program No. 21. Bentley: Department of Conservation and Land Management.
Hearn, Roger W., Meissner, Rachel, Brown, Andrew P., Macfarlane, Terry D. and Annels, Tony R. (2006). Declared Rare and Poorly Known Flora in the Warren Region. Western Australian Wildlife Management Program No. 40. Jointly published by Australian Government Department of Environment and Heritage (Canberra) & Western Australian Department of Conservation and Land Management (Bentley DC). x + 305 pp.
Hnatiuk, R. J. (1990). Census of Australian vascular plants. Australian Flora and Fauna Series 11: 1-650.
Humphreys, Aelys M., Govaerts, Rafaël, Ficinski, Sarah Z., Lughadha, Eimear Nic and Vorontsova, Maria S. (2019). Global dataset shows geography and life form predict modern plant extinction and rediscovery. Nature Ecology & Evolution 3: 1043-1047. https://doi.org/10.1038/s41559-019-0906-2 [Supplementary Dataset 1]
Markey, A. S. (2018). By their fruit you will recognise them: species notes and typifications in Western Australian species of Opercularia (Rubiaceae: Anthosperminae). Nuytsia 29: 119-140. https://doi.org/10.58828/nuy00866
Silcock, Jen L., Field, Ashley R., Walsh, Neville G. and Fensham, Roderick J. (2019). To name those lost: assessing extinction likelihood in the Australian vascular flora. Oryx 54(2): 167-177. https://doi.org/10.1017/S0030605318001357 [Supplementary Material]
Walter, Kerry S. and Gillett, Harriet J. (eds.). (1998). 1997 IUCN Red List of Threatened Plants. Compiled by the World Conservation Monitoring Centre. Gland, Switzerland & Cambridge, UK: IUCN – The World Conservation Union. lxiv + 862 pp.