Rondeletia brandegeeana Lorence

Taxonomy & Nomenclature

Invalid (now considered a synonym of Arachnothryx chiapensis)

Conservation Status

Invalid (synonym)

Distribution

Guatemala

Biology & Ecology

Hypodigm

Media

References

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]

POWO. 2018. Plants of the World online. Facilitated by the Royal Botanic Gardens, Kew. http://e-monocot.org/.

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.

W.C.M.C. (1996). Threatened plant database of the World Conservation Monitoring Centre. W.C.M.C., Cambridge, U.K.

<< Back to the Gentianales database

Ophiorrhiza codyensis Gamble

Taxonomy & Nomenclature

Conservation Status

Rediscovered

Distribution

Western Ghats, India

Biology & Ecology

Hypodigm

Media

References

Hareesh, Vadakkoot Sankaran et al. (2020). Revisiting the taxonomy of Ophiorrhiza codyensis and lectotypification of O. pykarensis (Rubiaceae), two endemic taxa of the Western Ghats. Phytotaxa 452(2): 173-179. [Abstract]

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]

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.

https://vanishingflora.proboards.com/thread/4291/ophiorrhiza-codyensis

<< Back to the Gentianales database

Gentianella clelandii (L.G.Adams) Glenny (2004:518)

Taxonomy & Nomenclature

Synonym/s: Chionogentias clelandii L.G.Adams in Austral. Syst. Bot. 8: 968 (1995)

Conservation Status

Missing (Silcock et al., 2019:SM:6 [as 'Likely extinct'], 2021:7) or Extinct (POWO, 2023; Christenhusz & Govaerts, 2024)

Last record: 1947 (Silcock et al., 2019:SM:6, 2021:7; Christenhusz & Govaerts, 2024)

"Only known from one locality, collected in 1947; has probably become extinct due to swamps being modified and heavily grazed"

(Silcock et al., 2019:SM:6)

Distribution & Habitat

South Australia, Australia

Biology & Ecology

Hypodigm

Media

References

Original scientific description:

Adams, L. G. (1995). Chionogentias (Gentianaceae), a new generic name for the Australasian 'snow-gentians',and a revision of the Australian species. Australian Systematic Botany 8: 935-1011.

Other references:

Adams, L. G. (1996). Gentianaceae, pp. 72-104 [101]. In: Wilson, Annette (ed.). Flora of Australia Volume 28, Gentianales. Melbourne: CSIRO Australia. xxi + 335 pp.

Christenhusz, Maarten J. M. and Govaerts, Rafaël. (2023). Uitgestorven. Op plantenjacht rond de wereld: 1-511. Sterck & De Vreese.

Christenhusz, Maarten J. M. and Govaerts, Rafaël. (2024). Plant extinction in the Anthropocene. Botanical Journal of the Linnean Society. https://doi.org/10.1093/botlinnean/boae045 [Appendix S1]

Glenny, David. (2004). A revision of the genus Gentianella in New Zealand. New Zealand Journal of Botany 42(3): 361-530. https://doi.org/10.1080/0028825X.2004.9512910

POWO. (2023). Gentianella clelandii (L.G.Adams) Glenny. Plants of the World Online (online resource). Royal Botanic Gardens, Kew, United Kingdom. Available at: https://powo.science.kew.org/ [Accessed 8 December 2023]

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]

Silcock, Jen L., Collingwood, Teghan, Llorens, Tanya and Fensham, Rod. (2020). Action Plan for Australia's Imperilled Plants 2020. Brisbane: NESP Threatened Species Recovery Hub. 339 pp.

Silcock, Jen L., Collingwood, Teghan, Llorens, Tanya and Fensham, Rod. (2021). Action Plan for Australia's Imperilled Plants 2021. Brisbane: NESP Threatened Species Recovery Hub. 342 pp.

<< Back to the Gentianales database

Gentiana wingecarribiensis L.G.Adams (1988:172)

Wingecarribee gentian, Swamp gentian

Taxonomy & Nomenclature

Synonym/s: Gentianella wingecarribiensis (nomen nudum) [used by Silcock et al., 2019]

Conservation Status

Missing (cf. Silcock et al., 2019:SM:6, 2020:7, 2021:7) or Extinct (Low & Booth, 2023; Christenhusz & Govaerts, 2024)

Last record: 1994 (Christenhusz & Govaerts, 2024); 2000 (Silcock et al., 2019:SM:6, 2020:7, 2021:7)

"Cryptic/enigmatic, but no plants found in past 15 years [and high degree of habitat modification]"

(Silcock et al., 2019:SM:6, 2020:7, 2021:7)

"Main threats are hydrological change from sedimentation, peat mining, peat oxidation, pine plantations, trampling by cattle and feral pigs and weed invasion (Kodela et al., 1994, NSW Scientific Committee, 2008). These threats are associated with local disappearances of the species, hence P(local) is set high, but the potential existence of a soil seed bank suggests some propensity for persistence through unfavourable periods of unknown duration. The range is unlikely to be much larger than previously known, but there are also some swamps in the west of the distribution that have not been thoroughly searched, and its small size and cryptic annual life cycle suggests a possibility that some populations remain undiscovered. Hence P(spatial) has large bounds. One confirmed and one uncertain location are modified by intensive agriculture with associated livestock and weeds, including one site severely impacted by mining. The third site is exposed to sedimentation associated with forestry with feral pig activity and cattle grazing, apparently transformed to a lesser degree than the other sites."

(Keith et al., 2017:323)

Distribution & Habitat

New South Wales, Australia

"Peat swamps - herblands with emergent shrubs"

(Silcock et al., 2019:SM:6)

"restricted to margins of two or three temperate mesotrophic mires of the Robertson plateau in southeast Australia."

(Keith et al., 2017:323)

Biology & Ecology

Hypodigm

Media

References

Adams, L. G. (1996). Gentianaceae, pp. 72-104 [89]. In: Wilson, Annette (ed.). Flora of Australia Volume 28, Gentianales. Melbourne: CSIRO Australia. xxi + 335 pp.

Christenhusz, Maarten J. M. and Govaerts, Rafaël. (2024). Plant extinction in the Anthropocene. Botanical Journal of the Linnean Society. https://doi.org/10.1093/botlinnean/boae045 [Appendix S1]

Colyvan, Mark et al. (1999). The treatment of uncertainty and the structure of the IUCN threatened species categories. Biological Conservation 89: 245-249.

Govaerts, R. (2003). World Checklist of Seed Plants Database in ACCESS G: 1-40325.

Keith, David A., Butchart, S. H. M., Regan, H. M., Harrison, I., Ackakaya, H. R., Solow, A. R. and Burgman, M. A. (2017). Inferring extinctions I: a structured method using information on threats. Biological Conservation 214: 320-327. https://doi.org/10.1016/j.biocon.2017.07.026

Keith, David A., Chalson, Jane M. and Auld, Tony D. (1997). Assessing the status of threatened plants: A new methodology and an application to the vascular flora of New South Wales. Project No. 450, Endangered Species Program. Canberra: Biodiversity Group, Environment Australia.

Kodela, P. G., James, T. A. and Hind, P. D. (1994). Observations on the ecology and conservation status of the rare herb Gentiana wingecarribiensis. Cunninghamia 3: 535-541.

Low, Tim and Booth, Carol. (2023). GONE: Australian animals extinct since the 1960s. Invasive Species Council Inc.

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 26 October 2024]

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]

Silcock, Jen L., Collingwood, Teghan, Llorens, Tanya and Fensham, Rod. (2020). Action Plan for Australia's Imperilled Plants. Brisbane: NESP Threatened Species Recovery Hub. 339 pp.

Silcock, Jen L., Collingwood, Teghan, Llorens, Tanya and Fensham, Rod. (2021). Action Plan for Australia's Imperilled Plants. Brisbane: NESP Threatened Species Recovery Hub. 342 pp.

https://vanishingflora.proboards.com/thread/4286/gentiana-wingecarribiensis

<< Back to the Gentianales database