|
Scientific Name | Lachenalia macgregoriorum W.F.Barker |
Higher Classification | Monocotyledons |
Family | HYACINTHACEAE |
National Status |
Status and Criteria | Critically Endangered (Possibly Extinct) |
Assessment Date | 2015/11/18 |
Assessor(s) | G.D. Duncan & L. von Staden |
Justification | Known from a single subpopulation, where it was last seen in 1962. It has not been relocated despite several searches, and may possibly be extinct in the wild. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | Nieuwoudtville. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Nieuwoudtville-Roggeveld Dolerite Renosterveld |
Description | Karoo shrubland on red clay soils in dolerite rock cracks. |
Threats |
| It is not certain what caused the disappearance of the only known population, but the area has been grazed by livestock for many years, and is partially invaded by alien invasive grasses. |
Population |
This species was collected once, in 1962, at a well-known locality on the Bokkeveld Escarpment near Nieuwoudtville. Despite many subsequent botanical surveys of the area, as well as numerous targeted searches, it has never been seen again. Similar habitat elsewhere on the Bokkeveld Escarpment is also botanically well-explored. The population is either extinct, or requires very specific conditions to flower. Plants remain in cultivation at Kirstenbosch Botanical Garden (Duncan 2012).
|
Population trend | Unknown |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Lachenalia macgregoriorum W.F.Barker | VU D2 | Raimondo et al. (2009) | | Lachenalia macgregoriorum W.F.Barker | Rare | Hilton-Taylor (1996) | |
Bibliography |
Duncan, G.D. 1988. Lachenalia handbook. Annals of Kirstenbosch Botanic Garden 17:1-71.
Duncan, G.D. 2012. The genus Lachenalia. Kew Publishing, Royal Botanic Gardens, Kew.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Hilton-Taylor, C. Unpublished. Succulent Karoo Red Data List (version 1997 - in preparation). SANBI.
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.
|
Citation |
| Duncan, G.D. & von Staden, L. 2015. Lachenalia macgregoriorum W.F.Barker. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2019/08/17 |
Comment on this assessment
