Stenostelma umbelluliferum (Schltr.) S.P.Bester & Nicholas
Taxonomy & Nomenclature
Conservation Status
Rediscovered in 2003
Distribution
South Africa
Biology & Ecology
Hypodigm
Media
References
Victor, J. E. and Bester, S. P. (2020). Conservation status of Stenostelma umbelluliferum and its implications for management of biodiversity. South African Journal of Botany 131: 138-142. [Abstract]
Victor, J. E., Bester, S. P. and Pfab, M. F. (2007). Stenostelma umbelluliferum (Schltr.) S.P.Bester & Nicholas. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2020/03/06
Kadua foliosa Hillebr.
Taxonomy & Nomenclature
Conservation Status
Missing (Wood et al., 2019:9) or Extinct (Humphreys et al., 2019; Albani Rocchetti et al., 2022)
Last record: pre-1872 (Wood et al., 2019:9)
This species has been identified as one of the 50 best candidates for de-extinction, ranking 38/50 (Albani Rocchetti et al., 2022).
Distribution
Maui, Hawaiian Islands, USA
Biology & Ecology
Hypodigm
Media
References
Albani Rocchetti, Giulia, Carta, Angelino, Mondoni, Andrea, Godefroid, Sandrine, Davis, Charles C., Caneva, Giulia, Albrecht, Matthew A., Alvarado, Karla, Bijmoer, Roxali, Borosova, Renata, Bräuchler, Christian, Breman, Elinor, Briggs, Marie, Buord, Stephane, Cave, Lynette H., Da Silva, Nílber Gonçalves, Davey, Alexandra H., Davies, Rachael M., Dickie, John B., Fabillo, Melodina, Fleischmann, Andreas, Franks, Andrew, Hall, Geoffrey, Kantvilas, Gintaras, Klak, Cornelia, Liu, Udayangani, Medina, Leopoldo, Reinhammar, Lars Gunnar, Sebola, Ramagwai J., Schönberger, Ines, Sweeney, Patrick, Voglmayr, Hermann, White, Adam, Wieringa, Jan J., Zippel, Elke Zippel and Abeli, Thomas. (2022). Selecting the best candidates for resurrecting extinct-in-the-wild plants from herbaria. Nature Plants 8: 1385-1393. https://doi.org/10.1038/s41477-022-01296-7 [Supplementary Tables S1-S6]
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/.
Wagner, W., Herbst, D. & Sohmer, S. (1990). Manual of the Flowering Plants of Hawai'I 1-2: 1-1853. University of Hawaii Press.
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.
Ixora rangonensis Bremek.
Taxonomy & Nomenclature
Conservation Status
Rediscovered
Distribution
Assam, India & Myanmar (=Burma)
Biology & Ecology
Hypodigm
Media
References
Neoschumannia kamerunensis Schltr.
Taxonomy & Nomenclature
Conservation Status
Rediscovered
Distribution
Cameroon, Central African Republic & Côte d'Ivoire
Biology & Ecology
Hypodigm
Media
References
Cheek, Martin and Cable, Stuart. (1997). Plant inventory for conservation management: the Kew-Earthwatch programme in Western Cameroon, 1993-96, pp. 29-38. In: Doolan, Seán. African Rainforests and the Conservation of Biodiversity. Proceedings of the Limbe Conference, Limbe Botanic Garden, Cameroon, 17-24 January 1997. Earthwatch Europe. [p. 34]
Meve, U. (1997). Neoschumannia kamerunensis Schltr. (Asclepiadaceae) rediscovered in Cameroon after nearly a century. Bot. Jahrb. 119(3): 427-435.
Whitesloanea crassa (N.E.Br.) Chiov.
Taxonomy & Nomenclature
Synonym/s: Caralluma crassa N.E. Br. (basionym); Drakebrockmania crassa (N.E.Br.) A.C.White & B.Sloane
Conservation Status
Rediscovered twice
"Not far from Sheikh is a barren stony hillside which is assumed to be the type locality of the remarkable stapeliad Whitesloanea crassa, discovered in 1914, not rediscovered until 1957 (see Cactus & Succulent Journal of America 31: 107. 1959), and subsequently thought to be possibly extinct (Nat. Cact. Succ. J. 30: 34. 1975)."
(Johnson, 1982:14)
"Somalia is very appealing to many lovers of succulent plants for various good reasons. Somalia is a very difficult and dangerous travel destination and yet it is the natural habitat of a great number of rare and difficult to cultivate, oddly shaped and ultra succulent plants of various plant families. Whitesloanea crassa, (N.E.Br.) Chiov. once believed extinct and then rediscovered, is just one example."
(van Veldhuisen, 2022:20)
Distribution
Somalia
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Brown, N. E. (1935). Plants New or Noteworthy. Caralluma crassa, N. E. Br. Gdnrs' Chron. (3) 98: 6.
Other references:
Bally, P. R. O. (1959). Three Interesting Stapeliads from Somaliland. Cactus Succul. J. Am. 31: 107-111.
Bally, P. R. O. (1961). White-sloanea crassa. The Flowering Plants of Africa 34: t. 1338.
Bally, P. R. O., Horwood, F. K. and Lavranos, J. J. (1975). A Monograph of the Genera Pseudolithos and Whitesloanea. The National Cactus and Succulent Journal 30(2): 31-36. https://www.jstor.org/stable/42791977
Bruyns, P. V. (1998). The relationships of Whitesloanea crassa. Edinburgh Journal of Botany 55(1): 27-37.
Chiovendra, E. (1937). Di un nuovo Genere della Famiglia Asclepiadaceae Sect. Stapelieae. Malpighia 34: 541-542.
Johnson, Margaret. (1982). Camel's Milk and Aloes: The travels of a Kew Expedition to Somalia. The Cactus and Succulent Journal of Great Britain 44(1): 9-16. https://www.jstor.org/stable/42786452
Lucas, Grenville Llewellyn and Synge, Hugh (compilers). (1978). The IUCN Plant Red Data Book. Morges, Switzerland: IUCN. 540 pp. [pp. 77-78]
Rauth, W. and Rauth, H. (1974). Baja California. The National Cactus and Succulent Journal 29(2): 44-51. ["possibly extinct"]
Rowley, G. (1973). Save the Succulents! A practical step to aid conservation. Cact. Succ. J. Am. 45: 9.
van Veldhuisen, Rikus. (2022). Euphorbia horwoodii S. Carter & J. Lavranos. Euphorbia World 18: 20-26.
White, A. and Sloane, B. L. (1937). The Stapelieae I. Pasadena, California, pp. 401-403.