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Scientific Name | Ceropegia dubia R.A.Dyer |
Higher Classification | Dicotyledons |
Family | APOCYNACEAE |
National Status |
Status and Criteria | Data Deficient - Taxonomically Problematic |
Assessment Date | 2007/03/29 |
Assessor(s) | R. Peckover, J.E. Victor & L. von Staden |
Justification | Ceropegia dubia is only known from cultivated plants and no wild populations have been found in the Eastern Cape to date, although the type material was reported to have been collected from there. It is very similar to Ceropegia meyeri-johannis, a species from Tropical East Africa, and the possibility that it is the same species cannot be excluded. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Eastern Cape |
Range | Uncertain. Possibly endemic to the area between Uitenhage and Coega. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Albany Thicket |
Description | Unknown. Dyer (1980) gives the habitat as karroid scrub. |
Threats |
| If this is a valid species and indeed confined to the area between Uitenhage and Coega, it is likely to be severely threatened by ongoing habitat loss to urban and industrial expansion. |
Population |
Population trend | Unknown |
Notes |
| Ceropegia dubia was described in 1980 (Dyer 1980) from a single specimen, collected from "between Coega and Uitenhage". Subsequent searches by P.V. Bruyns failed to locate this species in its reported natural habitat, and a follow-up with the collector of the type material revealed that the specimen was made from a plant growing in the collector's garden in Grahamstown, and that he could not remember where exactly the wild material was collected (Bruyns 1985). Bruyns (1985) noted the remarkable similarity between this species and Ceropegia meyeri-johannis, a species from tropical East Africa, however, it was never formally synonymised. Wild individuals of Ceropegia dubia have not yet been found again. |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Ceropegia dubia R.A.Dyer | Data Deficient (Taxonomically Problematic) | Raimondo et al. (2009) | | Ceropegia dubia R.A.Dyer | Data Deficient | Victor (2002) | | Ceropegia dubia R.A.Dyer | Indeterminate | Hilton-Taylor (1996) | |
Bibliography |
Bruyns, P.V. 1985. Notes on Ceropegias of the Cape Province. Bradleya 3:1-47.
Dyer, R.A. 1980. Brachystelma, Ceropegia and Riocreuxia. In: O.A. Leistner (ed). Flora of Southern Africa 27 Part 4:1-88. Botanical Research Institute, Pretoria.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
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.
Victor, J.E. 2002. South Africa. In: J.S. Golding (ed), Southern African plant Red Data Lists. Southern African Botanical Diversity Network Report 14 (pp. 93-120), SABONET, Pretoria.
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Citation |
| Peckover, R., Victor, J.E. & von Staden, L. 2007. Ceropegia dubia R.A.Dyer. National Assessment: Red List of South African Plants version . Accessed on 2025/07/01 |
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