Cetraria (Parmeliaceae) and some related genera on the African continent

Bothalia ◽  
1987 ◽  
Vol 17 (1) ◽  
pp. 45-49 ◽  
Author(s):  
I. Kärnefelt
Keyword(s):  
East Africa ◽  
Southern Africa ◽  
African Continent ◽  
Flora Of Southern Africa ◽  
South West ◽  
High Elevations ◽  
Lichen Flora

Four species are reported new for the lichen flora of southern Africa:  Bryoria fuseescens (Gyeln.) Brodo D. Hawksw.,  B. motykae (D. Hawksw.) Brodo D. Hawksw.,  Cetraria chlorophylla (Humb.) Vain, and  Platismatia glauca (L.) Culb. Culb. (Parmeliaceae), found at high elevations in Natal and south-west Cape.  B. fuscescens, B. motykae and  P. glauca were previously known from a few localities, also at high elevations, in east Africa. The genus Cetraria s. str. was previously unknown on the African continent.

scholarly journals Flora of Southern Africa : the Republic of South Africa, Basutoland, Swaziland and South West Africa.

1963 ◽  
Author(s):  
L. E. W. Codd ◽  
B. De Winter ◽  
R. Allen Dyer ◽  
H. B. Rycroft ◽  
Keyword(s):  
South Africa ◽  
West Africa ◽  
Southern Africa ◽  
Flora Of Southern Africa ◽  
South West ◽  
South West Africa ◽  
The Republic

Introduction

2018 ◽  
Author(s):  
Marina Sharpe
Keyword(s):  
West Africa ◽  
Great Lakes ◽  
East Africa ◽  
North Africa ◽  
Southern Africa ◽  
Theoretical Approach ◽  
Central Africa ◽  
Horn Of Africa ◽  
Refugee Protection

This introductory chapter begins by presenting the book’s structure in section A. Section B then delineates the book’s contours, outlining four aspects of refugee protection in Africa that are not addressed. Section C provides context, with a contemporary overview of the state of refugee protection in Africa. It also looks at the major aspects of the refugee situations in each of Africa’s principal geographic sub-regions: East Africa (including the Horn of Africa), Central Africa and the Great Lakes, West Africa, Southern Africa, and North Africa. Section D then concludes with an outline of the theoretical approach to regime relationships employed throughout the book.

scholarly journals The Botanical, Chemical and Ethnobotanical Diversity of Southern African Lamiaceae

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3712
Author(s):  
Ryan D. Rattray ◽  
Ben-Erik Van Wyk
Keyword(s):  
Southern Africa ◽  
Folk Medicine ◽  
Taxonomic Diversity ◽  
Volatile Oils ◽  
Edible Plant ◽  
Flora Of Southern Africa ◽  
Traditional Uses ◽  
History Of ◽  
Pharmaceutical Industries ◽  
History Of Use

The Lamiaceae is undoubtedly an important plant family, having a rich history of use that spans the globe with many species being used in folk medicine and modern industries alike. Their ability to produce aromatic volatile oils has made them valuable sources of materials in the cosmetic, culinary, and pharmaceutical industries. A thorough account of the taxonomic diversity, chemistry and ethnobotany is lacking for southern African Lamiaceae, which feature some of the region’s most notable medicinal and edible plant species. We provide a comprehensive insight into the Lamiaceae flora of southern Africa, comprising 297 species in 42 genera, 105 of which are endemic to the subcontinent. We further explore the medicinal and traditional uses, where all genera with documented uses are covered for the region. A broad review of the chemistry of southern African Lamiaceae is presented, noting that only 101 species (34%) have been investigated chemically (either their volatile oils or phytochemical characterization of secondary metabolites), thus presenting many and varied opportunities for further studies. The main aim of our study was therefore to present an up-to-date account of the botany, chemistry and traditional uses of the family in southern Africa, and to identify obvious knowledge gaps.

scholarly journals Projected future daily characteristics of African precipitation based on global (CMIP5, CMIP6) and regional (CORDEX, CORDEX-CORE) climate models

2021 ◽  
Author(s):  
Alessandro Dosio ◽  
Martin W. Jury ◽  
Mansour Almazroui ◽  
Moetasim Ashfaq ◽  
Ismaila Diallo ◽  
...  
Keyword(s):  
East Africa ◽  
Southern Africa ◽  
Climate Models ◽  
Precipitation Intensity ◽  
Regional Models ◽  
The West ◽  
Precipitation Frequency ◽  
Global Models ◽  
Dry Spells ◽  
Precipitation Characteristics

AbstractWe provide an assessment of future daily characteristics of African precipitation by explicitly comparing the results of large ensembles of global (CMIP5, CMIP6) and regional (CORDEX, CORE) climate models, specifically highlighting the similarities and inconsistencies between them. Results for seasonal mean precipitation are not always consistent amongst ensembles: in particular, global models tend to project a wetter future compared to regional models, especially over the Eastern Sahel, Central and East Africa. However, results for other precipitation characteristics are more consistent. In general, all ensembles project an increase in maximum precipitation intensity during the wet season over all regions and emission scenarios (except the West Sahel for CORE) and a decrease in precipitation frequency (under the Representative Concentration Pathways RCP8.5) especially over the West Sahel, the Atlas region, southern central Africa, East Africa and southern Africa. Depending on the season, the length of dry spells is projected to increase consistently by all ensembles and for most (if not all) models over southern Africa, the Ethiopian highlands and the Atlas region. Discrepancies exist between global and regional models on the projected change in precipitation characteristics over specific regions and seasons. For instance, over the Eastern Sahel in July–August most global models show an increase in precipitation frequency but regional models project a robust decrease. Global and regional models also project an opposite sign in the change of the length of dry spells. CORE results show a marked drying over the regions affected by the West Africa monsoon throughout the year, accompanied by a decrease in mean precipitation intensity between May and July that is not present in the other ensembles. This enhanced drying may be related to specific physical mechanisms that are better resolved by the higher resolution models and highlights the importance of a process-based evaluation of the mechanisms controlling precipitation over the region.

A synopsis of Delosperma N.E.Br. (Aizoaceae) in North East Africa and South West Arabia

Bradleya ◽  
2008 ◽  
Vol 26 (26) ◽  
pp. 41-62 ◽  
Author(s):  
H.E.K. Hartmann
Keyword(s):  
East Africa ◽  
North East ◽  
South West

scholarly journals ASPHODELACEAE

Bothalia ◽  
2001 ◽  
Vol 31 (1) ◽  
pp. 39-40
Author(s):  
C. Archer
Keyword(s):  
Southern Africa ◽  
Flora Of Southern Africa ◽  
Generic Record

JODRELLIA FISTULOSA, A NEW GENERIC RECORD FOR THE FLORA OF SOUTHERN AFRICA REGION

Development Politics and the Politics of Development in Zimbabwe and Ethiopia

1987 ◽  
Vol 15 ◽  
pp. 60-69
Author(s):  
Barbara P. Thomas
Keyword(s):  
Ethnic Groups ◽  
Southern Africa ◽  
Environmental Problems ◽  
African Continent ◽  
Development Politics ◽  
New States ◽  
Casual Observer

To the casual observer and the experienced scholar alike, the complexity of the African continent defies imagination. Two of the complicated-and troubled-areas are Southern Africa and the Horn. These two regions with their extraordinary mix of ethnic groups, races, political loyalties, new states, varying colonial experiences, economic concerns and environmental problems challenge the most astute analyst of African affairs. Recently, I had an opportunity to return to Zimbabwe and Ethiopia for a brief visit after a three-year absence. I was intrigued with the possibiltiy of looking more closely at some of the pieces of the Southern Africa and Horn puzzles. I wondered what changes there would be in these two countries since I had last visited them in the summer of 1982.

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