Adenogramma littoralis

Taxonomy
Scientific Name
Adenogramma littoralis Adamson
Higher Classification
Dicotyledons
Family
MOLLUGINACEAE
National Status
Status and Criteria
Data Deficient - Insufficient Information
Assessment Date
2016/11/22
Assessor(s)
L. von Staden
Justification
A widespread, but very poorly known species (EOO 16 344 km²). It is possibly threatened by habitat loss and degradation, but due to a lack of recent field observations nothing is known about its population size, structure and trends. Therefore its risk of extinction cannot be assessed at present.
Distribution
Endemism
South African endemic
Provincial distribution
Northern Cape, Western Cape
Range
Coastal areas from Hondeklipbaai in Namaqualand to False Bay.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Namaqualand Coastal Duneveld, Overberg Dune Strandveld, Namaqualand Strandveld
Description
Deep sands at low altitudes, often near the sea.
Threats
The threats to this taxon are not known. It is probably threatened by habitat loss to mining on the Namaqualand coast, where extensive, highly destructive open-cast mining has led to the loss and degradation of large areas of coastal duneveld. Further south it is likely to be threatened by habitat loss to coastal development.
Population

This species is known from only a handful of historical records, and was last observed in 1952. Adenogramma species are cryptic and very easily overlooked, but the lack of recent records are concerning. Field surveys are needed to relocate it in the wild. Historical records suggest that it has a fairly wide distribution range, but based on available data, the number of extant subpopulations, population size and trends cannot be estimated.


Population trend
Unknown
Conservation
This species has not been recorded from any formally protected areas.
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Adenogramma littoralis AdamsonLeast Concern Raimondo et al. (2009)
Bibliography

Adamson, R.S. 1955. The South African species of Aizoaceae I. Adenogramma and Polpoda. Journal of South African Botany 21:83-95.


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.


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
von Staden, L. 2016. Adenogramma littoralis Adamson. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2017/03/27

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Distribution map


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