Aloe modesta

Taxonomy
Scientific Name
Aloe modesta Reynolds
Higher Classification
Monocotyledons
Family
ASPHODELACEAE
National Status
Status and Criteria
Vulnerable B2ab(ii,iii,iv,v)
Assessment Date
2009/07/22
Assessor(s)
M. Lötter, J.E. Burrows, S. Krynauw & L. von Staden
Justification
A rare species known from two disjunct areas in Mpumalanga and northern KwaZulu-Natal. Although widespread (EOO 11 000-28 000 km²), the AOO is low (estimated fewer than 1000 km²) and it is known from eight locations. Surveys of suitable habitat by C. Craib failed to locate more subpopulations. There is a continuing decline as a result of alien plant invasion, urban expansion (mainly around Dullstroom), forestry and overgrazing.
Distribution
Endemism
South African endemic
Provincial distribution
KwaZulu-Natal, Mpumalanga
Range
Dullstroom and Wakkerstroom districts in Mpumalanga and also possibly occurs near Vryheid in KwaZulu-Natal.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Paulpietersburg Moist Grassland, Wakkerstroom Montane Grassland, Northern Escarpment Quartzite Sourveld, Northern Escarpment Dolomite Grassland, Lydenburg Montane Grassland
Description
Montane grassland, 1600-2000 m.
Threats
A. modesta is threatened by alien invasive encroachment and development of tourism facilities, mainly trout farms and golf estates in the Dullstroom district. On the escarpment between Lydenburg and Graskop much of the habitat has been transformed to forestry plantations in the past, and the two known subpopulations in this area occur on small grassland fragments surrounded by plantations. In southern Mpumalanga A. modesta is mainly threatened by alien invasive encroachment as well as habitat degradation as a result of overgrazing (Craib 2005).
Population

A. modesta is rarely recorded mainly because it is inconspicuous unless in flower and the flowering season is very short (February-March), but it is also very rare. Searches in suitable habitat at an appropriate time of the year failed to locate any more subpopulations (Craib 2005). In spite of the large range of this species it is, therefore, unlikely that there are more than 10 locations.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Aloe modesta ReynoldsVU B2ab(ii,iii,iv,v)Raimondo et al. (2009)
Aloe modesta ReynoldsData Deficient Victor (2002)
Aloe modesta ReynoldsData Deficient Scott-Shaw (1999)
Aloe modesta ReynoldsInsufficiently Known Hilton-Taylor (1996)
Bibliography

Craib, C. 2005. Grass Aloes in the South African Veld. Umdaus Press, Hatfield.


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


Scott-Shaw, C.R. 1999. Rare and threatened plants of KwaZulu-Natal and neighbouring regions. KwaZulu-Natal Nature Conservation Service, Pietermaritzburg.


Van Wyk, B.-E. and Smith, G. 1996. Guide to the aloes of South Africa. Briza Publications, Pretoria.


Van Wyk, B.-E. and Smith, G. 2003. Guide to aloes of South Africa. (2nd ed.). Briza Publications, 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
Lötter, M., Burrows, J.E., Krynauw, S. & von Staden, L. 2009. Aloe modesta Reynolds. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2018/11/18

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Distribution map

© M. Lötter

© M. Lötter

© M. Lötter

© M. Lötter

© M. Lötter

© M. Lötter

© M. Lötter


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