|
Scientific Name | Tritonia marlothii M.P.de Vos subsp. delpierrei (M.P.de Vos) M.P.de Vos |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
Synonyms | Tritonia delpierrei M.P.de Vos |
National Status |
Status and Criteria | Endangered B1ab(iii)+2ab(iii) |
Assessment Date | 2021/07/08 |
Assessor(s) | P. Goldblatt, J.C. Manning, D. Raimondo, R.C. Turner & T. Patel |
Justification | This subspecies is a Richtersveld endemic, known from three locations. It has an extent of occurrence (EOO) of 647 km², and an area of occupancy (AOO) of 36 km². It is declining due to overgrazing and trampling, and is therefore listed as Endangered under criteria B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | It is endemic to South Africa, and is centred in the Richtersveld in Northern Cape, mainly north of Eksteenfontein. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Stinkfonteinberge Eastern Apron Shrubland, Rooiberg Quartz Vygieveld |
Description | It occurs on rocky slopes and outcrops with the corms often wedged in cracks and fissures. |
Threats |
| This subspecies occurs on lower slopes and flats, where degradation due to severe overstocking of communally owned rangelands is ongoing. |
Population |
It is known from three locations, and has a decreasing population trend.
|
Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Tritonia marlothii M.P.de Vos subsp. delpierrei (M.P.de Vos) M.P.de Vos | EN B1ab(iii)+2ab(iii) | 2015.1 | | Tritonia delpierrei M.P.de Vos | VU D2 | Raimondo et al. (2009) | | Tritonia delpierrei M.P.de Vos | Rare | Hilton-Taylor (1996) | |
Bibliography |
De Vos, M.P. 1999. Tritonia. In: O.A. Leistner (ed). Flora of Southern Africa 7 Iridaceae Part 2: Ixioideae, Fascicle 1: Ixieae:89-128. National Botanical Institute, Pretoria.
Goldblatt, P. and Manning, J.C. 2020. Iridaceae of southern Africa. Strelitzia 42. South African National Biodiversity 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.
|
Citation |
| Goldblatt, P., Manning, J.C., Raimondo, D., Turner, R.C. & Patel, T. 2021. Tritonia marlothii M.P.de Vos subsp. delpierrei (M.P.de Vos) M.P.de Vos. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
Comment on this assessment
