|
Scientific Name | Romulea lilacina J.C.Manning & Goldblatt |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
National Status |
Status and Criteria | Vulnerable D2 |
Assessment Date | 2007/01/16 |
Assessor(s) | N.A. Helme & D. Raimondo |
Justification | Known from the type locality from the banks of the Riet River, where it occurs on deep sands. Forty per cent of this habitat within the immediate area of the type locality has been transformed by crop cultivation. This is a potential threat to the only known subpopulation. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Koue Bokkeveld. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Swartruggens Quartzite Fynbos, Kouebokkeveld Alluvium Fynbos |
Description | Deep, sandy soils along river banks. |
Threats |
The species is restricted to a highly specialized habitat, and there are no immediate threats in the vicinity of the only known subpopulation. Small sections of the riverbank further upstream has been cultivated, but there has been no expansion of crop cultivation in the past 15-20 years. Further habitat loss to crop cultivation remains a potential threat. |
Population |
Two observations of the same population in 2000 and 2001 recorded respectively 'scattered plants' and 'abundant'. The species is probably locally common in its highly specialized habitat, but the number of flowering plants is dependent on rainfall. It is currently known from only one subpopulation, but is likely to occur in similar alluvial washes elsewhere in the Swartruggens-Koue Bokkeveld area.
|
Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | Romulea lilacina J.C.Manning & Goldblatt | VU D2 | Raimondo et al. (2009) | |
Bibliography |
Manning, J.C. and Goldblatt, P. 2001. A synoptic review of Romulea (Iridaceae: Crocoideae) in sub-Saharan Africa, the Arabian Peninsula and Socotra including new species, biological notes, and a new infrageneric classification. Adansonia 23(1):59-108.
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 |
Helme, N.A. & Raimondo, D. 2007. Romulea lilacina J.C.Manning & Goldblatt. National Assessment: Red List of South African Plants version . Accessed on 2025/05/09 |