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Scientific Name | Lampranthus sociorum (L.Bolus) N.E.Br. |
Higher Classification | Dicotyledons |
Family | AIZOACEAE |
Synonyms | Mesembryanthemum sociorum L.Bolus |
Common Names | Mat Brightfig (e) |
National Status |
Status and Criteria | Endangered B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) |
Assessment Date | 2018/10/03 |
Assessor(s) | C. Klak, D. Raimondo & L. von Staden |
Justification | Lampranthus sociorum has an extent of occurrence (EOO) of 4145 km², and an area of occupancy (AOO) of less than 450 km². About 20 small, severely fragmented subpopulations continue to decline due to ongoing habitat loss and degradation. It is therefore listed as Endangered under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species is endemic to South Africa, and is found in the Cape Flats, Swartland and upper Breede River Valley. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Swartland Shale Renosterveld, Swartland Granite Renosterveld, Breede Shale Renosterveld, Swartland Alluvium Fynbos, Swartland Silcrete Renosterveld |
Description | It occurs in renosterveld, on shale on flats and lower slopes of hills. |
Threats |
| More than 80% of this species' habitat has been lost to urban and agricultural expansion. There is ongoing habitat loss and degradation, and much of this species' remaining habitat is infested with alien invasive plants that are outcompeting native species. |
Population |
Recent field observations recorded at least 20 remaining subpopulations of Lampranthus sociorum, and all occur on small, isolated fragments. The largest subpopulation near Mamre consists of about 1000 plants, but all other subpopulations are small, ranging between 10 and 500 plants. The population is therefore considered severely fragmented, and continues to decline due to ongoing habitat loss and degradation.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Lampranthus sociorum (L.Bolus) N.E.Br. | EN B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) | 2020.1 | | Lampranthus sociorum (L.Bolus) N.E.Br. | VU B1ab(i,ii,iii,iv,v) | Raimondo et al. (2009) | | Lampranthus sociorum (L.Bolus) N.E.Br. | Endangered | Hilton-Taylor (1996) | |
Bibliography |
Goldblatt, P. and Manning, J.C. 2000. Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town.
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.
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Citation |
| Klak, C., Raimondo, D. & von Staden, L. 2018. Lampranthus sociorum (L.Bolus) N.E.Br. National Assessment: Red List of South African Plants version . Accessed on 2024/09/14 |
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