Ruschia amicorum

Taxonomy
Scientific Name
Ruschia amicorum (L.Bolus) Schwantes
Higher Classification
Dicotyledons
Family
AIZOACEAE
Synonyms
Mesembryanthemum amicorum L.Bolus
National Status
Status and Criteria
Critically Endangered (Possibly Extinct)
Assessment Date
2016/01/13
Assessor(s)
L. von Staden
Justification
A highly localized species (EOO based on historic records 97 km²), that was last recorded in the 1960s. It is possibly extinct, as very little intact habitat remains within its known range, but may also be overlooked. Surveys are needed to determine whether any subpopulations survive.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Montagu to Worcester.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Robertson Karoo, Western Little Karoo
Description
Uncertain, possibly shale on lower slopes.
Threats
Threatened by ongoing habitat loss to urban expansion around Montagu and Ashton, as well as loss to agricultural expansion (mainly vineyards) in the Breede River Valley.
Population

A localized and poorly known species that was last recorded in the 1960s. It has lost habitat to urban and agricultural expansion at all known locations, and surveys are needed to determine if any subpopulations survive in remaining fragments. The genus Ruschia is in need of taxonomic revision, and species are difficult to identify, and therefore it may be overlooked.


Population trend
Unknown
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Ruschia amicorum (L.Bolus) SchwantesVU D2Raimondo et al. (2009)
Ruschia amicorum (L.Bolus) SchwantesRare 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.


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.


Citation
von Staden, L. 2016. Ruschia amicorum (L.Bolus) Schwantes. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2017/08/17

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Distribution map


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