Taxonomy
Scientific Name
Agathosma alligans Williams
Higher Classification
Dicotyledons
Family
RUTACEAE
National Status
Status and Criteria
Rare
Assessment Date
2020/01/20
Assessor(s)
T. Trinder-Smith & L. von Staden
Justification
Agathosma alligans is a highly range-restricted species, with an extent of occurrence (EOO) of 14 km². Its habitat is protected, and it has no severe threats, and therefore it is not suspected to be in danger of extinction.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
This species is endemic to a small area in the Western Cape, where it occurs in the upper Olifants River Valley east of Porterville.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Winterhoek Sandstone Fynbos
Description
It is localized to crevices on sandstone cliffs.
Population
Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Agathosma alligans WilliamsRare Raimondo et al. (2009)
Bibliography

Bolus Herbarium. The genus Agathosma, specimen data from the Bolus Herbarium Collections database. University of Cape Town, Cape Town. Downloaded on 2007.


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.


Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. South African National Biodiversity 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.


Williams, I. 1985. Studies on the genera of the Diosmeae (Rutaceae): 16. A key to the genera of the Diosmeae Benth. & Hook. (Rutaceae) and a description of a new species of Agathosma (Rutaceae). South African Journal of Botany 51(2):149-151.


Citation
Trinder-Smith, T. & von Staden, L. 2020. Agathosma alligans Williams. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2022/01/25

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Distribution map


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