Taxonomy
Scientific Name
Gethyllis longistyla Bolus
Higher Classification
Monocotyledons
Family
AMARYLLIDACEAE
National Status
Status and Criteria
Rare
Assessment Date
2016/11/01
Assessor(s)
D.A. Snijman & D. Raimondo
Justification
A relatively widespread, but rare species, typically occurring in small subpopulations. It is not currently threatened.
Distribution
Endemism
South African endemic
Provincial distribution
Eastern Cape, Western Cape
Range
Sneeuberg, Agter-Sneeuberg and Nuweveld Mountains.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Nama Karoo
Description
Summits of rocky dolerite ridges.
Threats
There are currently no severe threats to this species. However, its distribution range falls within an area earmarked for shale gas extraction. It is not certain what the impact of gas extraction and associated infrastructure development on its habitat is likely to be, but dolerite intrusions tend to have low to no gas deposits, and it could possibly be spared from future habitat loss and degradation.
Population

Gethyllis longistyla is known from only a few records, scattered over a wide area. It is rare, and easily overlooked, as it is cryptic when it is not flowering, and flowers, which appear in late summer, lasts only a few days. Subpopulations are typically small, occurring in subpopulations consisting of 20 or fewer plants.


Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Gethyllis longistyla BolusRare Raimondo et al. (2009)
Bibliography

Bolus, H. and MacOwan, P. 1881. Novitates capensis: descriptions of new plants from the Cape of Good Hope: Gethyllis longistyla. Journal of the Linnean Society 18:396-397.


Craib, C. 2002. Gethyllis longistyla from the eastern Great Karoo and Gethyllis species nova from southern Namaqualand. Herbertia 56:101-104.


Magee, A.R. and Boatwright, J.S. (eds). In prep. Plants of the Karoo: A Conspectus of the Nama-Karoo and Adjacent Summer-Rainfall Regions of the Northern and Western Cape Provinces. Strelitzia.


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.


Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.


Citation
Snijman, D.A. & Raimondo, D. 2016. Gethyllis longistyla Bolus. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2021/09/08

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Distribution map

© R.C. Turner


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