Euphorbia celastroides tomentella (Boiss.) Oudejans
Taxonomy & Nomenclature
Synonym/s: Euphorbia multiformis tomentella Boiss.; Chamaesyce celastroides tomentella (Boiss.) Koutnik
Conservation Status
Missing (Wood et al., 2019:8)
Last record: 1840's; 2000 (Wood et al., 2019:8)
IUCN RedList status: Extinct
Distribution
Oahu, Hawaiian Islands, USA
Biology & Ecology
Hypodigm
Media
References
Bruegmann, M.M. & Caraway, V. 2003. Euphorbia celastroides var. tomentella. The IUCN Red List of Threatened Species 2003: e.T33555A9793213. http://dx.doi.org/10.2305/IUCN.UK.2003.RLTS.T33555A9793213.en. Downloaded on 29 April 2017.
Oldfield, Sara, Lusty, Charlotte and MacKinven, Amy (compilers). (1998). The World List of Threatened Trees. Cambridge, U.K.: World Conservation Press. 650 pp.
U.S. Fish and Wildlife Service. 2003. Rare plant database. Unpublished.
Wagner, W., Herbst, D. and Sohmer, S. 1990. Manual of the flowering plants of Hawaii. University of Hawaii Press, Bishop Museum Press, Honolulu.
Wagner, W., Herbst, D. and Sohmer S. 1999. Manual of the Flowering Plants of Hawaii. Bernice Pauahi Bishop Museum Special Publication 91: 1-1918.
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.
Wood, Kenneth R., Oppenheimer, Hank and Keir, Matthew. (2019). A checklist of endemic Hawaiian vascular plant taxa that are considered possibly extinct in the wild. National Tropical Botanical Garden, Technical Report #314.
Euphorbia boinensis Denis ex Humbert & Leandri
Taxonomy & Nomenclature
Conservation Status
Extinct
Last record: 1920
IUCN RedList status: Critically Endangered (Possibly Extinct)
Distribution
Madagascar (western)
Biology & Ecology
Hypodigm
Media
References
Cremers, G. 1984. Les euphorbes coralliformes de Madagascar. Bulletin du Jardin Botanique National de Belgique 54(1-2): 23-64.
Haevermans, T. 2004. Euphorbia boinensis. The IUCN Red List of Threatened Species 2004: e.T44303A10887270. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T44303A10887270.en. Downloaded on 27 December 2015.
Euphorbia alcicornis Baker
Taxonomy & Nomenclature
Conservation Status
Missing
Last record: 1880
IUCN RedList status: Critically Endangered
Distribution
Madagascar
Biology & Ecology
Hypodigm
Media
References
Denis, M. 1921. Les Euphorbiées des Iles Australes d'Afrique. Theses. Nemours.
Haevermans, T. 2004. Euphorbia alcicornis. The IUCN Red List of Threatened Species 2004: e.T44277A10871051. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T44277A10871051.en. Downloaded on 27 December 2015.
Dovyalis spinosissima Gilg
Taxonomy & Nomenclature
Conservation Status
Missing
Distribution
Malawi (southern)
Biology & Ecology
Hypodigm
Media
References
http://vanishingflora.proboards.com/thread/1996/dovyalis-spinosissima
Dactyladenia cinerea (Engl. ex De Wild.) Prance & F.White
Taxonomy & Nomenclature
Synonym/s: Acioa cinerea Engl. ex De Wild.
Conservation Status
Missing
IUCN RedList status: Endangered
Distribution
Cameroon
Biology & Ecology
Hypodigm
Media
References
Cheek, M. & Prance, G. 2015. Dactyladenia cinerea. The IUCN Red List of Threatened Species 2015: e.T30438A2793432. http://dx.doi.org/10.2305/IUCN.UK.2015-4.RLTS.T30438A2793432.en. Downloaded on 16 November 2016.
Onana, J.-M. and Cheek, M. (eds). 2011. Red Data Book of the Flowering Plants of Cameroon: IUCN Global Assessments. Kew Publishing, Royal Botanic Gardens, Kew.
Tchouto, M.G.P. 2004. Plant diversity in a central African rain forest: implications for biodiversity conservation in Cameroon. PhD Thesis. Department of Plant Sciences, Biosystematics Group, Wageningen University.