Exsiccatae in the bryophyte collection of the National Herbarium, Pretoria

Bothalia ◽  
2013 ◽  
Vol 43 (1) ◽  
pp. 55-66 ◽  
Author(s):  
J. Van Rooy
Keyword(s):  
South Africa ◽  
Southern Hemisphere ◽  
Northern Hemisphere ◽  
Transfer Of Knowledge ◽  
National Herbarium ◽  
The Usa ◽  
First Time

Exsiccatae in the bryophyte collection of the National Herbarium in Pretoria (PRE) are catalogued for the first time. Most of the 66 series represented in PRE were issued in Europe, but the USA is the country where the largest number of exsiccatae originated. The exsiccatae span three centuries, with the earliest specimens issued in 1845 and the latest in 2009. This indicates the long-standing exchange of material and transfer of knowledge between herbaria in South Africa and countries of the northern Hemisphere. Many of the exsiccatae in PRE are incomplete and specimens were received as duplicates in exchange sets rather than exsiccatae. PRE houses a number of important African and southern hemisphere exsiccatae including two different sets of A. Rehmann’s Musci Austro-Africani (1875–1877) and Musci Austro-Africani cont., and R. Ochyra’s Bryophyta Antarctica exsiccata.

scholarly journals Emission-Line Fluxes of Northern Planetary Nebulae

2015 ◽  
Vol 32 ◽  
Author(s):  
N. Aksaker ◽  
S. K. Yerli ◽  
Ü Kızıloğlu ◽  
B. Atalay
Keyword(s):  
Emission Line ◽  
Southern Hemisphere ◽  
Northern Hemisphere ◽  
Supernova Remnants ◽  
Planetary Nebulae ◽  
Line Flux ◽  
Chemical Abundances ◽  
Flux Measurements ◽  
First Time

AbstractWe present long slit spectrophotometric emission line fluxes of bright and extended (< 5 arcsec in diameter) planetary nebulae (PNe), selected from a catalogue with suitable equatorial coordinates for northern hemisphere. In total, 17 planetary nebulae have been chosen and observed in 2008–2010. To measure absolute fluxes, broad slit sizes, ranging from 3.5 to 7.5 arcsec were used and thus equivalent widths (EW) of all observable emission line fluxes were also calculated. Among 17 planetary nebulae observed, line flux measurements of 12 of them were made for the first time. This work also aims to extend the sky coverage of emission line flux standards in northern hemisphere (52 planetary nebulae in southern hemisphere; 6 planetary nebulae in northern hemisphere). Electron temperatures and densities, and chemical abundances of these planetary nebulae were also calculated in this work. These data are expected to lead the photometric or spectrometric further work for absolute emission line flux measurements needed for H ii regions, supernova remnants etc.

Amylostereum areolatum.

2021 ◽  
Author(s):  
Keyword(s):  
South Africa ◽  
New Zealand ◽  
South America ◽  
Southern Hemisphere ◽  
North Africa ◽  
White Rot ◽  
Symbiotic Association ◽  
Southern South America ◽  
Western Asia ◽  
The Usa

Abstract A. areolatum is a basidiomycete that causes a white rot of a broad range of conifers. Its invasiveness arises from a symbiotic association with woodwasps of the genus Sirex. The species Sirexnoctilio is listed as "highly invasive" on the ISSG/IUCN website (ISSG, 2008) and is a Regulated Pest for the USA (APHIS, 2009a). The wasp and the fungus are native to Europe, North Africa and western Asia where their damage is considered secondary (Spradbery and Kirk, 1978). Introduced to areas of the Southern Hemisphere where exotic pine species are grown in plantations, these organisms have caused major losses. The insect invaded New Zealand by at least 1900, but did not cause serious concern until the 1940s (Talbot, 1977). It later spread to Tasmania and the southern parts of Australia and the wasp/fungus association was introduced into southern South America, beginning in Uruguay in 1980 (Ciesla, 2003). Invasion of South Africa occurred in 1994 (Tribe, 1995). Woodwasps are repeatedly detected in material imported to the USA, but were successfully excluded until 2004 (Wilson et al., 2009). The wasp and fungus were later found in nearby Canada (Ontario), although apparently due to a separate introduction (Bergeron et al., 2008; Wilson et al., 2009). Recent surveys found the wasp in four states of the USA (Evans-Goldner and Bunce, 2009) and 25 counties of Ontario in Canada (Shields, 2009). Schiff (2008) summarizes differences in complexity of the ecological situations in the Southern Hemisphere countries and North America that could affect spread and impact of the fungus and wasp.

Lichenicolous ascomycetes onSiphula-like lichens, with a key to the species

2019 ◽  
Vol 51 (1) ◽  
pp. 45-73
Author(s):  
Jurga MOTIEJŪNAITĖ ◽  
Mikhail P. ZHURBENKO ◽  
Ave SUIJA ◽  
Gintaras KANTVILAS
Keyword(s):  
South Africa ◽  
Species Richness ◽  
New Species ◽  
Southern Hemisphere ◽  
Northern Hemisphere ◽  
New Genera ◽  
Additional Species ◽  
Lichenicolous Fungi ◽  
Species Being

AbstractSixteen species of lichenicolous fungi are documented fromSiphula-like lichens. Two new genera based on new species are introduced.AmylogallaSuija, Motiej. & Kantvilas, characterized by I+ blue, K/I+ violet vegetative hyphae and ascomatal wall, immersed, cleistohymenial, yellowish to orange ascomata, unitunicate, non-amyloid, 8-spored asci and hyaline, ellipsoid, aseptate ascospores, is described fromParasiphulain Tasmania.SaaniaZhurb., characterized by superficial, stromatic, multilocular ascomata, non-amyloid hymenial gel, persistent periphysoids, bitunicate, non-amyloid, 4(–8)-spored asci and narrowly obovate to ellipsoid, 1(–3)-septate, initially hyaline and smooth-walled, later sometimes brown and verruculose ascospores, is described fromSiphulain South Africa. Four additional species are described as new: two fromSiphula(Cercidospora santessoniiMotiej., Zhurb., Suija & Kantvilas andStigmidium kashiwadaniiZhurb.) and two fromParasiphula(Endococcus hafellnerianusMotiej., Suija & Kantvilas andPyrenidium macrosporumMotiej., Zhurb., Suija & Kantvilas). Additional hosts and/or expanded geographical ranges are reported forAabaarnia siphulicola,Epigloea soleiformis, Plectocarpon gayanumandPyrenidium actinellum. The Southern Hemisphere is the centre of species richness for siphulicolous fungi, with 12 species restricted to this region. Taxa recorded for the Northern Hemisphere areSphaerellothecium siphulae(arctic and boreal) and the subcosmopolitanEpigloea soleiformisandPyrenidium actinellum, both of which are also known from various lichen hosts. The distribution of siphulicolous fungi strongly underpins the current generic classification ofSiphula-like lichens, with five species being confined exclusively toParasiphulaand nine toSiphula. A key to the taxa occurring onSiphulaandParasiphulais provided.

Stalked jellyfishes (Cnidaria: Staurozoa) of South Africa, with the description of Calvadosia lewisi sp. nov.

Zootaxa ◽  
2017 ◽  
Vol 4227 (3) ◽  
pp. 369 ◽  
Author(s):  
LUCÍLIA S. MIRANDA ◽  
GEORGE M. BRANCH ◽  
ALLEN G. COLLINS ◽  
YAYOI M. HIRANO ◽  
ANTONIO C. MARQUES ◽  
...  
Keyword(s):  
South Africa ◽  
New Species ◽  
South African ◽  
Southern Hemisphere ◽  
Northern Hemisphere ◽  
A New Species ◽  
Benthic Animals

Stalked jellyfishes (Cnidaria: Staurozoa) are cryptic, benthic animals, known mainly from polar and temperate waters of the Northern Hemisphere. We describe a new species, Calvadosia lewisi, from South Africa and review the staurozoan fauna of the region. Three other species are previously known from South Africa: Calvadosia capensis (Carlgren, 1938); Depastromorpha africana Carlgren, 1935; and Lipkea stephensoni Carlgren, 1933, but all of these are known from very few records and have been poorly illustrated and documented to date. We provide brief descriptions and photographic illustrations for each species and a list of local and global geographical records. Two (L. stephensoni and C. lewisi), but possibly three (D. africana), of the four known South African staurozoan species are endemic from South Africa. The new species, images, and extra distributional records presented here greatly improve knowledge of the staurozoan fauna in South Africa and, consequently, of the Southern Hemisphere. 

scholarly journals Agistemus collyerae (Acari: Trombidiformes: Stigmaeidae) in South Africa: first record, introduction pathways and a re-description including additional life stages

Acarologia ◽  
2018 ◽  
Vol 58 (1) ◽  
pp. 116-130
Author(s):  
Davina L. Saccaggi ◽  
Edward A. Ueckermann
Keyword(s):  
South Africa ◽  
South African ◽  
First Record ◽  
Western Cape ◽  
Western Cape Province ◽  
Introduction Pathways ◽  
Introduction Pathway ◽  
The Usa ◽  
First Time ◽  
A New Species

Agistemus collyerae Gonzáles-Rodrigues (Stigmaeidae) is reported for the first time in South Africa on grapevines in the Western Cape Province. We investigate a possible introduction pathway of this mite as a contaminant on imported agricultural goods. Based on South African interception data, we report new country records of A. collyerae in the USA, Chile, Yemen, Spain and France. We re-describe it based on the South African specimens, including first-time descriptions of the male and deutonymph. Female specimens have shorter dorsal setae than those documented in the original descriptions, but we do not consider this enough evidence to justify a new species.

Additions to the genus Mycobilimbia s. lat. from the Southern Hemisphere

2005 ◽  
Vol 37 (3) ◽  
pp. 251-259 ◽  
Author(s):  
Gintaras KANTVILAS ◽  
María Inés MESSUTI ◽  
H. Thorsten LUMBSCH
Keyword(s):  
New Species ◽  
Southern Hemisphere ◽  
Northern Hemisphere ◽  
Similar Species ◽  
Two New Species ◽  
First Time

Two new species of Mycobilimbia are described and compared with other members of the genus: Mycobilimbia australis Kantvilas & Messuti from austral, cool to cold temperate regions, and Mycobilimbia meridionalis Kantvilas from Tasmania. Two additional, superficially similar species that are widespread in the Northern Hemisphere, M. hypnorum (Lib.) Kalb & Hafellner and Bilimbia lobulata (Sommerf.) Hafellner & Coppins, are recorded from Tasmania for the first time.

scholarly journals Heterogeneity in influenza seasonality and vaccine effectiveness in Australia, Chile, New Zealand and South Africa: early estimates of the 2019 influenza season

2019 ◽  
Vol 24 (45) ◽  
Author(s):  
Sheena G Sullivan ◽  
Carmen S Arriola ◽  
Judy Bocacao ◽  
Pamela Burgos ◽  
Patricia Bustos ◽  
...  
Keyword(s):  
South Africa ◽  
New Zealand ◽  
Southern Hemisphere ◽  
Northern Hemisphere ◽  
Influenza Season ◽  
Vaccine Effectiveness ◽  
Point Estimates ◽  
Influenza Seasonality

We compared 2019 influenza seasonality and vaccine effectiveness (VE) in four southern hemisphere countries: Australia, Chile, New Zealand and South Africa. Influenza seasons differed in timing, duration, intensity and predominant circulating viruses. VE estimates were also heterogeneous, with all-ages point estimates ranging from 7–70% (I2: 33%) for A(H1N1)pdm09, 4–57% (I2: 49%) for A(H3N2) and 29–66% (I2: 0%) for B. Caution should be applied when attempting to use southern hemisphere data to predict the northern hemisphere influenza season.

Introduction to Clubs

2018 ◽  
Author(s):  
Clayton Barrows ◽  
Michael Robinson
Keyword(s):  
United States ◽  
South Africa ◽  
New Zealand ◽  
The United States ◽  
The World ◽  
The Usa ◽  
Roman Baths ◽  
English Speaking ◽  
English Speaking World ◽  
First Time

Private clubs have existed for as long as people have desired to gather in groups to do things together. It has been suggested that private clubs (and their predecessors) date to the Roman baths but probably pre-date even those. It is doubtful that the Roman baths represented the first time people congregated in groups to socialize, discuss commerce, politics, or just engage in a mutually agreeable activity. Certainly, most agree that the ‘modern’ clubs (in the English speaking world) originated in England, were limited to ‘gentlemen’ and organized for social, political, business and/or pleasure reasons. The concept was then ‘exported’ along with ex-patriots all around the world. Clubs have since evolved to the point where they exist in countries around the world although they are embraced to a greater or lesser extent in different places. Examples of private clubs can be found in such countries as England (and the greater UK), Ireland, the United States, Canada, Australia and New Zealand, South Africa, Switzerland, Hong Kong, India, Pakistan, Japan, Singapore, and the UAE. Perhaps no country has adopted the idea of clubs as much as the USA, where they have evolved into a veritable industry, are protected by law, and number into the thousands. Humans, being social creatures, long to spend quality time with others – ‘others’, historically, representing those of their own kind. Perhaps it is for this reason that clubs have, rightly or wrongly, developed a reputation for being discriminatory. People generally find benefits from spending time with others. These benefits may accrue in many forms, including personal, professional, and political.

scholarly journals Deformed wing virus prevalence and load in honeybees in South Africa

2020 ◽  
Author(s):  
Flaviane S. de Souza ◽  
Michael H. Allsopp ◽  
Stephen J. Martin
Keyword(s):  
South Africa ◽  
Viral Load ◽  
Northern Hemisphere ◽  
Varroa Mite ◽  
Deformed Wing Virus ◽  
Viral Loads ◽  
The Past ◽  
Virus Prevalence ◽  
The Usa ◽  
The Uk

Abstract Deformed wing virus (DWV) is an emerging honeybee pathogen that has appeared across the globe in the past 40 years. When transmitted by the parasitic varroa mite, it has been associated with the collapse of millions of colonies throughout the Northern Hemisphere. However, despite the presence of the mite in the Southern Hemisphere, infested colonies survive. This study investigated the prevalence of DWV genotypes A, B and C along with their viral loads in South Africa and compared the findings with recent data from Brazil, the UK and the USA. We found that DWV-B was the most prevalent genotype throughout South Africa, although the total DWV viral load was significantly lower (2.8E+07) than found in the Northern Hemisphere (2.8E+07 vs. 2.7E+10, p > 0.00001) and not significantly different to that found in Brazil (5E+06, p = 0.13). The differences in viral load can be explained by the mite resistance in Brazil and South Africa, since mite-infested cells containing high viral loads are removed by the bees, thus lowering the colony's viral burden. This behaviour is much less developed in the vast majority of honeybees in the Northern Hemisphere.

scholarly journals Buellia epigaea (Pers.) Tuck , a new record of lichenized fungus species for Antarctica

2021 ◽  
Vol 11 (1) ◽  
pp. 9-15
Author(s):  
Merve Kahraman ◽  
Mehmet Gökhan Halıcı
Keyword(s):  
Southern Hemisphere ◽  
Northern Hemisphere ◽  
Related Species ◽  
New Record ◽  
Fungal Species ◽  
Molecular Characteristics ◽  
Fungus Species ◽  
Lichenized Fungus ◽  
First Time

Buellia epigaea, a terricolous lichenized fungal species known from numerous localities in Northern Hemisphere, but only from Australia in Southern Hemisphere, is reported from Antarctica for the first time. Here we provide morphological, anatomical, and molecular characteristics (nrITS) of this species. Besides, the differences of B. epigaea with morphologically, ecologically or phylogenetically related species are discussed.

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