Pterygodium newdigateae

Taxonomy
Scientific Name
Pterygodium newdigateae Bolus
Higher Classification
Monocotyledons
Family
ORCHIDACEAE
National Status
Status and Criteria
Critically Endangered (Possibly Extinct)
Assessment Date
2016/10/19
Assessor(s)
L. von Staden
Justification
Known only from collections made before 1923. Several searches over many years in the area where it is presumed to have been collected have failed to relocate it in the wild, and it is possibly extinct.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Plettenberg Bay.
Habitat and Ecology
Major system
Terrestrial
Major habitats
South Outeniqua Sandstone Fynbos
Description
Stony slopes near sea level.
Threats
The population was possibly lost to development or timber plantations, but since the precise area of occurrence is unknown, the reason for the disappearance of this species is unknown.
Population
Population trend
Unknown
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Pterygodium newdigateae Bolus var. newdigateae Data Deficient Raimondo et al. (2009)
Pterygodium newdigateae Bolus var. newdigateaeVU D2Victor (2002)
Pterygodium newdigateae BolusIndeterminate Hilton-Taylor (1996)
Bibliography

Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.


Liltved, W.R. and Johnson, S.D. Unpublished. The Cape Orchids - Wild orchids of the Cape Floral Kingdom.


Linder, H.P. and Kurzweil, H. 1999. Orchids of southern Africa. A.A. Balkema, Rotterdam.


Oliver, E.G.H., Liltved, W.R. and Pauw, A. 2008. Pterygodium vermiferum (Coryciinae), a new, autonomously self-pollinating, oil-secreting orchid from the Western Cape of South Africa. South African Journal of Botany 74(4):617-622.


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.


Victor, J.E. 2002. South Africa. In: J.S. Golding (ed), Southern African plant Red Data Lists. Southern African Botanical Diversity Network Report 14 (pp. 93-120), SABONET, Pretoria.


Citation
von Staden, L. 2016. Pterygodium newdigateae Bolus. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2017/09/19

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Distribution map


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