Psammotropha marginata

Taxonomy
Scientific Name
Psammotropha marginata (Thunb.) Druce
Higher Classification
Dicotyledons
Family
MOLLUGINACEAE
National Status
Status and Criteria
Data Deficient - Insufficient Information
Assessment Date
2016/10/03
Assessor(s)
L. von Staden
Justification
A very poorly known species, last collected before 1959. It is known from two highly disjunct localities, and may be overlooked in the areas in between, as it is a highly cryptic plant. Based on currently available data, its risk of extinction cannot be assessed.
Distribution
Endemism
South African endemic
Provincial distribution
Eastern Cape
Range
Somerset East to Port Elizabeth.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Albany Thicket
Description
Sandy places at low altitude.
Threats
The threats to this species are uncertain. It has possibly declined in the Swartkops River Valley, but threats elsewhere in its range are not known.
Population

Psammotropha marginata is a small, cryptic herb, and easily overlooked. It is known from only two collections, one from the Swartkops River Valley near Uitenhage (dating from 1830), and one from Botha's Hill south of Somerset East, about 100 km to the north (cited in Adamson 1959).


Population trend
Unknown
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Psammotropha marginata (Thunb.) DruceThreatened Raimondo et al. (2009)
Bibliography

Adamson, R.S. 1959. The South African species of Aizoaceae. VIII. Psammotropha. Journal of South African Botany 25:51-67.


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.


Sonder, W. 1859. Caryophylleae. In: W.H. Harvey and O.W. Sonder (eds). Flora Capensis I (Ranunculaceae-Connaraceae):120-151. Hodges, Smith and Co., Dublin.


Citation
von Staden, L. 2016. Psammotropha marginata (Thunb.) Druce. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2017/08/22

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Distribution map


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