A taxonomic treatment of Trisetopsis (Poeae, Poaceae) in southern Africa

Phytotaxa ◽  
2020 ◽  
Vol 458 (1) ◽  
pp. 15-68
Author(s):  
ALUONESWI C. MASHAU ◽  
LYN FISH ◽  
ABRAHAM E. VAN WYK
Keyword(s):  
Southern Africa ◽  
Dna Sequences ◽  
Iucn Red List ◽  
Sub Saharan Africa ◽  
Flora Of Southern Africa ◽  
Distribution Maps ◽  
Taxonomic Treatment ◽  
Iucn Red List Categories ◽  
Sub Saharan ◽  
Species Descriptions

Trisetopsis, a genus of temperate C3 grasses, extends from the Arabian Peninsula southwards along the African mountains (temperate Afromontane Region) to sub-Saharan Africa and Madagascar, with a centre of diversity in southern Africa. A taxonomic treatment of Trisetopsis in the Flora of southern Africa (FSA) region is presented. The proposed classification is based on existing and comparative evidence derived from macromorphology, micromorphology, leaf anatomy, DNA sequences and geographical distribution. Fourteen species of Trisetopsis are recognized in the FSA region, all of them endemic to the region. Five of the species are rare; based on IUCN Red List categories and criteria, three species are considered “Vulnerable”, one as “Endangered, and one as “Critically Endangered” and probably “Extinct”. Improved and emended species descriptions, a key to the species, updated distribution maps and illustrations, especially of the spikelets, are provided. Lectotypes are designated for the names Avenastrum longum var. grande and Avena longa (basionym of Trisetopsis longa).

Genetic polymorphism and population structure ofEchinococcus ortleppi

Parasitology ◽  
2016 ◽  
Vol 144 (4) ◽  
pp. 450-458 ◽  
Author(s):  
F. ADDY ◽  
M. WASSERMANN ◽  
F. BANDA ◽  
H. MBAYA ◽  
J. ASCHENBORN ◽  
...  
Keyword(s):  
Genetic Polymorphism ◽  
South America ◽  
Southern Africa ◽  
Dna Sequences ◽  
Intraspecific Variability ◽  
Sensu Stricto ◽  
Sub Saharan Africa ◽  
Geographical Regions ◽  
Sub Saharan ◽  
Eastern And Southern Africa

SUMMARYThe zoonotic cestodeEchinococcus ortleppi(Lopez-Neyra and Soler Planas, 1943) is mainly transmitted between dogs and cattle. It occurs worldwide but is only found sporadically in most regions, with the notable exception of parts of southern Africa and South America. Its epidemiology is little understood and the extent of intraspecific variability is unknown. We have analysed in the present study the genetic diversity among 178E. ortleppiisolates from sub-Saharan Africa, Europe and South America using the complete mitochondrialcox1(1608 bp) andnad1(894 bp) DNA sequences. Genetic polymorphism within the loci revealed 15cox1and sixnad1haplotypes, respectively, and 20 haplotypes of the concatenated genes. Presence of most haplotypes was correlated to geographical regions, and only one haplotype had a wider spread in both eastern and southern Africa. Intraspecific microvariance was low in comparison withEchinococcus granulosussensu stricto, despite the wide geographic range of examined isolates. In addition, the various sub-populations showed only subtle deviation from neutrality and were mostly genetically differentiated. This is the first insight into the population genetics of the enigmatic cattle adaptedEchinococcus ortleppi. It, therefore, provides baseline data for biogeographical comparison amongE. ortleppiendemic regions and for tracing its translocation paths.

scholarly journals Reinstatement of Dovyalis revoluta (Flacourtieae, Salicaceae), with an updated key to the species of Dovyalis in southern Africa

Phytotaxa ◽  
2019 ◽  
Vol 409 (2) ◽  
pp. 53-65
Author(s):  
RICHARD G.C. BOON ◽  
ABRAHAM E. VAN WYK
Keyword(s):  
Southern Africa ◽  
Iucn Red List ◽  
World Heritage Site ◽  
Conservation Assessment ◽  
Flora Of Southern Africa ◽  
Iucn Red List Categories ◽  
Heritage Site ◽  
Kwazulu Natal ◽  
Orange Fruit ◽  
The Town

Dovyalis revoluta, almost since described included in D. zeyheri, is reinstated. This restricted-range endemic from South Africa is compared with other southern African members of the genus, in particular D. zeyheri. Illustrations, photographs, a distribution map and a revised description are provided. Also included is an updated key to the seven currently accepted members of Dovyalis in the Flora of southern Africa region. Dovyalis revoluta belongs to Dovyalis sect. Dovyalis, and has only been recorded from a small area in the province of KwaZulu-Natal near the town of Hluhluwe. Most plants are known from the False Bay Park section of the Isimangaliso Wetland Park, a World Heritage Site. Dovyalis revoluta is clearly distinguished from other southern African members of the genus by having relatively large (ca. 22–25 mm in diam.), subglobose, orange fruit, with the surface minutely and densely papillate and the calyx lobes (tepals) tightly revolute, but not accrescent, after flowering. Furthermore, the vegetative parts are essentially glabrous and the leaves are usually entire and not distinctly three-veined from the base. Domatia are absent. A preliminary population assessment, including an estimate of the sex ratio, was conducted at False Bay Park. Based on IUCN Red List categories and criteria, a conservation assessment of “Critically Endangered” is recommended for this species.

scholarly journals New records and key to Poa (Pooideae, Poaceae) from the Flora of Southern Africa region and notes on taxa including a diclinous breeding system in Poa binata

PhytoKeys ◽  
2020 ◽  
Vol 165 ◽  
pp. 27-50
Author(s):  
Robert J. Soreng ◽  
Steven P. Sylvester ◽  
Mitsy D.P.V. Sylvester ◽  
Vincent Ralph Clark
Keyword(s):  
Southern Africa ◽  
Breeding System ◽  
Breeding Systems ◽  
Sub Saharan Africa ◽  
Second Step ◽  
Flora Of Southern Africa ◽  
Identification Guide ◽  
African Grasses ◽  
Sub Saharan ◽  
The One

Four species of Poa L. are newly reported for sub-Saharan Africa and southern Africa, Poa compressa L., P. iconia Azn., P. infirma Kunth and P. nemoralis L. This is the first report of P. iconia from Africa. Vouchers at PRE of P. bulbosa L. all belong to var. vivipara Koeler, those of P. iconia belong to var. iconia and the one of P. trivialis L. belongs to var. trivialis. Two subspecies are recognised in P. pratensis L.: subsp. irrigata (Lindm.) H.Lindb. and subsp. pratensis. We also designate a lectotype for P. iconia and second-step lectotype for P. leptoclada Hochst. ex A.Rich. and report the first recording of a diclinous breeding system in P. binata Nees. Our account updates the treatment in Identification Guide to Southern African Grasses (Fish et al. 2015) including a key to the taxa and notes on infrageneric taxonomy, DNA subtypes, ecology, chromosome numbers and breeding systems.

Firearms in Southern Africa: A survey

1971 ◽  
Vol 12 (4) ◽  
pp. 517-530 ◽  
Author(s):  
Shula Marks ◽  
Anthony Atmore
Keyword(s):  
Nineteenth Century ◽  
Seventeenth Century ◽  
Southern Africa ◽  
Sub Saharan Africa ◽  
Black And White ◽  
Sub Saharan ◽  
Settler Population ◽  
White Settlement

The relationships of the peoples of southern Africa after the establishment and expansion of the white settlement in the mid-seventeenth century can be seen in terms of both conflict and interdependence, both resistance and collaboration. The conflict often split over into warfare, not only between black and white, but also within both groups. As time passed, firearms came to be used by ever-widening circles of the combatants, often as much the result of the increased collaboration and interdependence between peoples as of the increased conflict. As Inez Sutton has pointed out, ‘in contrast to most of the rest of [sub-Saharan] Africa, the presence of a settler population ensured that the supply of arms was the most modern rather than the most obsolete’, and on the whole non-whites were acutely aware of changes in the manufacture of firearms in the nineteenth century.

Embedding Indigenous Knowledge in Library and Information Science Education in Anglophone Eastern and Southern Africa

2017 ◽  
pp. 92-115 ◽  
Author(s):  
Patrick Ngulube
Keyword(s):  
Indigenous Knowledge ◽  
Southern Africa ◽  
Information Science ◽  
Sub Saharan Africa ◽  
Library And Information Science ◽  
Potential Contribution ◽  
University Curriculum ◽  
Sub Saharan ◽  
Eastern And Southern Africa ◽  
The University

There is need to re-examine the inclusion or exclusion of indigenous knowledge (IK) in the university curriculum in sub Saharan Africa (SSA). Western scientific knowledge on which the university curriculum in SSA is mainly based has proved to be inadequate in addressing developmental challenges. Using the curriculum of library and information science (LIS) departments in Anglophone east and southern Africa (AESA) as a case study, this chapter focuses on factors that influence the inclusion of IK in higher education in SSA. IK is recognised for its potential contribution to development by organisations such as the World Bank and African Union. Its inclusive ethos and accommodation of multiple realities also accounts for its popularity. In spite of that, IK has not established a stronghold in LIS curriculum in AESA. This study investigates the factors that influence its integration into the curriculum and makes recommendations based on the findings.

Acacia brevispica and A. schweinfurthii

Bothalia ◽  
1971 ◽  
Vol 10 (3) ◽  
pp. 419-426
Author(s):  
J. H. Ross
Keyword(s):  
Southern Africa ◽  
Distinct Species ◽  
Flora Of Southern Africa ◽  
Distribution Maps ◽  
Selection Of

Recently Brenan. in Kew Bull. 21 : 477-480 (1968). upheld  Acacia brevispica Harms and A. schweinfurthii Brenan Exell as distinct species and recognized two subspecies within A. brevispica. These conclusions differ from earlier results published by Ross Gordon- Gray in Brittonia 18: 44-63 (1966). Consequently it was considered necessary to re-examine these species in preparation for the account of  Acacia for the Flora of Southern Africa. Distribution maps of the two species are provided and the differences between the species tabulated and discussed. Despite certain difficulties in Natal. Brenan's taxonomic conclusions are adopted. A map showing the distribution of  A. schweinfurthii and  A. brevispica subsp. dregeana in Natal is provided and a selection of Natal specimens cited.

A revision of Tecophilaeaceae subfam. Tecophilaeoideae in Africa

Bothalia ◽  
2012 ◽  
Vol 42 (1) ◽  
pp. 21-41 ◽  
Author(s):  
J. C. Manning ◽  
P. Goldblatt
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Southern Africa ◽  
Infrageneric Classification ◽  
Flora Of Southern Africa ◽  
Distribution Maps

Family Tecophilaeaceae subfam. Tecophilaeoideae is revised for the Flora of southern Africa region, with the inclusion of the tropical Walleria mackenzii J.Kirk for completeness. The genera Cyanella Royen ex L. (9 spp.), Eremiolirion J.C.Manning F.Forest (1 sp.) and Walleria J.Kirk (3 spp.) are treated, with keys to the genera, species and subspecies; and full descriptions and distribution maps. A formal infrageneric classification is proposed for Cyanella, in which sect. Trigella (Salisb.) Pax K.Hoffm. is revived for the species with a 3 + 3 arrangement of stamens. The new species, C. marlothii J.C.Manning Goldblatt, is described from the Richtersveld; and C. pentheri Zahlbr. is resuscitated from the synonomy of C. hyacinthioides Royen ex L. Pink-flowered plants of normally yellow-flowered C. lutea have a separate geographical distribution and are recognized as subsp. rosea (Eckl. ex Baker) J.C.Manning Goldblatt.

The genus Trichodesma (Boraginaceae: Boraginoideae) in southern Africa

Bothalia ◽  
2002 ◽  
Vol 32 (2) ◽  
pp. 151-166 ◽  
Author(s):  
E. Retief
Keyword(s):  
Southern Africa ◽  
Vegetation Types ◽  
Distribution Maps ◽  
Perennial Herbs ◽  
Species Descriptions

Trichodesma R.Br. is a genus of about 45 species known from tropical and subtropical regions of Africa. Asia and Australia. The group comprises predominantly perennial herbs, the flowers characterized by anthers with prolonged connectives, often twisting above the thecae. and a prominent accrescent calyx. Five species and three subspecies of 7rii hodesma are currently recognized in southern Africa, with  T. angustifolium Harv. subsp. argenteum Relief A.E.van Wyk newly described. These taxa are widespread in southern Africa, occurring in various vegetation types. A key to the species, descriptions, distribution maps and illustrations of various micro- and macromorphological as well as palvnological features are provided.

Embedding Indigenous Knowledge in Library and Information Science Education in Anglophone Eastern and Southern Africa

2020 ◽  
pp. 255-278
Author(s):  
Patrick Ngulube
Keyword(s):  
Indigenous Knowledge ◽  
Southern Africa ◽  
Information Science ◽  
Sub Saharan Africa ◽  
Library And Information Science ◽  
Potential Contribution ◽  
University Curriculum ◽  
Sub Saharan ◽  
Eastern And Southern Africa ◽  
The University

There is need to re-examine the inclusion or exclusion of indigenous knowledge (IK) in the university curriculum in sub Saharan Africa (SSA). Western scientific knowledge on which the university curriculum in SSA is mainly based has proved to be inadequate in addressing developmental challenges. Using the curriculum of library and information science (LIS) departments in Anglophone east and southern Africa (AESA) as a case study, this chapter focuses on factors that influence the inclusion of IK in higher education in SSA. IK is recognised for its potential contribution to development by organisations such as the World Bank and African Union. Its inclusive ethos and accommodation of multiple realities also accounts for its popularity. In spite of that, IK has not established a stronghold in LIS curriculum in AESA. This study investigates the factors that influence its integration into the curriculum and makes recommendations based on the findings.

scholarly journals Molecular Diversity of Nematode Parasites in Afrotropical Reed Frogs (Hyperolius spp.)

Diversity ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 265
Author(s):  
Ulrich Sinsch ◽  
J. Maximilian Dehling ◽  
Patrick Scheid ◽  
Carsten Balczun
Keyword(s):  
Dna Sequences ◽  
Nematode Species ◽  
Sub Saharan Africa ◽  
Parasitic Nematodes ◽  
Marker Genes ◽  
Nematode Parasites ◽  
Diversity Assessment ◽  
Wide Range ◽  
Nematode Diversity ◽  
Sub Saharan

The diversity of nematodes infecting amphibians is understudied in tropical Africa and unknown in Rwanda. Diversity assessment is hampered by the fact that species descriptions refer mostly to morphological features that are unlinked to DNA sequences of marker genes available in public databases. In this paper, we explore the abundance and diversity of parasitic nematodes in reed frogs Hyperolius kivuensis (n = 115), H. parallelus (n = 45) and H. viridiflavus (n = 100) collected in Rwanda. Five nematode species were identified morphologically as Orneoascaris chrysanthemoides, O. schoutedeni, Gendria leberrei, Aplectana chamaeleonis and Rhabdias collaris. Corresponding DNA sequences of 18S and COI genes were determined and subsequently deposited in GenBank. Aplectana chamaeleonis showed the highest prevalence (8.7%), but O. chrysanthemoides the highest mean intensity of infection (6.0) and largest number (24) of individuals in H. kivuensis. To the best of our knowledge, all amphibian hosts are new records for these nematode species, which are known to infect a wide range of amphibian and reptile species. Our findings suggest that nematode diversity is probably lower than previously assumed due to low host specificity. As morphological species identification is often challenging, our data facilitate molecular identification of adult and specifically larval nematodes found in amphibians of Sub-Saharan Africa.

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