Olinia huillensis subsp. burttdavii

Taxonomy
Scientific Name
Olinia huillensis Welw. ex A.Fern. & R.Fern. subsp. burttdavii Sebola
Higher Classification
Dicotyledons
Family
OLINIACEAE
National Status
Status and Criteria
Vulnerable C2a(i)
Assessment Date
2014/05/08
Assessor(s)
D. Raimondo, L. von Staden, J.E. Burrows & R.J. Sebola
Justification
EOO 7584 km², known from between 10 and 20 locations. Subpopulations are typically small, consisting of fewer than 100 trees, we suspect that the overall population numbers fewer than 10 000 individuals. Decline due to habitat loss to crop cultivation and degradation of habitat as a result of livestock overgrazing is ongoing.
Distribution
Endemism
South African endemic
Provincial distribution
Limpopo, Mpumalanga
Range
Eastern escarpment of South Africa from Tzaneen to Lydenburg.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Northern Escarpment Afromontane Fynbos, Northern Escarpment Quartzite Sourveld, Lydenburg Montane Grassland
Description
Windswept rocky outcrops in the high-altitude mistbelt.
Threats
Subpopulations and habitat has been lost in the past to afforestation and crop cultivation, decline is ongoing due to crop cultivation and livestock overgrazing.
Population
Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Olinia huillensis Welw. ex A.Fern. & R.Fern. subsp. burttdavii SebolaVU C2a(i)2014.1
Bibliography

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.


Sebola, R.J. and Balkwill, K. 2009. Numerical phenetic analysis of Olinia rochetiana sensu lato (Oliniaceae). Kew Bulletin 64:95-121.


Citation
Raimondo, D., von Staden, L., Burrows, J.E. & Sebola, R.J. 2014. Olinia huillensis Welw. ex A.Fern. & R.Fern. subsp. burttdavii Sebola. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2018/02/22

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Distribution map


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