Manihot quinquefolia Pohl
Taxonomy & Nomenclature
Conservation Status
Last record: 1827
Since rediscovered
Distribution
Brazil
Biology & Ecology
Hypodigm
Media
References
Lopes Martins ML, Lemos de Carvalho PC, da Silva Ledo, C. A. and Amorim, A. M. (2018). Manihot alternifolia and M. elongata spp. nov. (Euphorbiaceae) and the rediscovery of M. quinquefolia in Caatinga (semiarid) vegetation in Brazil. Nordic Journal of Botany 36(3): 1-8. https://doi.org/10.1111/njb.01615
Croton josephina Müll.Arg.
Taxonomy & Nomenclature
Synonym/s: Croton josephinus Müll.Arg.; Oxydectes josephina (Müll.Arg.) Kuntze
Conservation Status
Last record: 1824
Rediscovered on 13 January 2004
Distribution
Minas Gerais, Brazil
Anatomy & Morphology
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Müller Argoviensis, J. (1873). Croton. In: Martius, C. F. P. and Eichler, A. G. (eds.) Flora Brasiliensis 11(2): 144-224.
Other references:
Medeiros, D., Alves, R. J. V. and de Senna-Valle, L. (2011). Rediscovery of Croton josephinus (Euphorbiaceae) in Minas Gerais, Brazil. Edinburgh Journal of Botany 68(1): 33-38. https://doi.org/10.1017/S0960428610000259
Pycnocoma subflava J.Léonard
Taxonomy & Nomenclature
Conservation Status
Missing
Last record: 1960
IUCN RedList status: Critically Endangered (Possibly Extinct)
Distribution
DR Congo
Biology & Ecology
Hypodigm
Media
References
Barberá, P., Simo-Droissart, M. & Tack, W. 2021. Pycnocoma subflava. The IUCN Red List of Threatened Species 2021: e.T137439725A138014721. https://dx.doi.org/10.2305/IUCN.UK.2021-3.RLTS.T137439725A138014721.en. Accessed on 01 August 2022.
Graner, Torun. (2026). A World Without Trees: An Analysis of Global Tree Extinction Rates, Geographical Distribution and Correlation to Socioeconomic Factors. Master’s Dissertation, School of Natural Sciences, Technology and Environmental Studies, Södertörn University. 41 pp.
Hypericum gnidiifolium A.Rich
Taxonomy & Nomenclature
Conservation Status
Missing
Last record: 1865
IUCN RedList status: Critically Endangered (Possibly Extinct)
Distribution
Ethiopia
Biology & Ecology
Hypodigm
Media
References
Alemu, S., Alemu, S., Atnafu, H., Awas, T., Birhanu Belay, Sebsebe Demissew, Luke, W.R.Q., Efrata Mekbib & Sileshi Nemomissa. 2021. Hypericum gnidiifolium (amended version of 2018 assessment). The IUCN Red List of Threatened Species 2021: e.T36468A208227983. https://dx.doi.org/10.2305/IUCN.UK.2021-3.RLTS.T36468A208227983.en. Accessed on 01 August 2022.
Graner, Torun. (2026). A World Without Trees: An Analysis of Global Tree Extinction Rates, Geographical Distribution and Correlation to Socioeconomic Factors. Master’s Dissertation, School of Natural Sciences, Technology and Environmental Studies, Södertörn University. 41 pp.
Ochna schliebenii Sleumer
Taxonomy & Nomenclature
Conservation Status
Missing
Last record: 1934
IUCN RedList status: Critically Endangered (Possibly Extinct)
Distribution
Tanzania
Biology & Ecology
Hypodigm
Media
References
Gereau, R.E., Kabuye, C., Kalema, J., Kamau, P., Kindeketa, W., Luke, W.R.Q., Lyaruu, H.V.M., Malombe, I., Mboya, E.I., Mollel, N., Njau, E.-F., Schatz, G.E., Sitoni, D., Ssegawa, P. & Wabuyele, E. 2020. Ochna schliebenii. The IUCN Red List of Threatened Species 2020: e.T158167A763742. https://dx.doi.org/10.2305/IUCN.UK.2020-3.RLTS.T158167A763742.en. Accessed on 31 July 2022.
Graner, Torun. (2026). A World Without Trees: An Analysis of Global Tree Extinction Rates, Geographical Distribution and Correlation to Socioeconomic Factors. Master’s Dissertation, School of Natural Sciences, Technology and Environmental Studies, Södertörn University. 41 pp.