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Studies in the Ericoideae (Ericaceae). VII. The placing of the genus Philippia into synonymy under Erica; the southern African species
No full textThe inclusion of the genus Philippia Klotzsch within Erica L. is formalized for the region covered by the Flora of southern Africa. A total of 15 species is dealt with involving six new combinations, Erica elsieana (E.G.H. Oliver) E.G.H. Oliver, Erica esteriana E.G.H. Oliver subsp. swartbergensis (E.G.H. Oliver) E.G.H. Oliver, Erica evansii (N.E.Br.) E.G.H. Oliver, Erica notholeeana (E.G.H. Oliver) E.G.H. Oliver, Erica procaviana (E.G.H. Oliver) E.G.H. Oliver, Erica simii (S. Moore) E.G.H. Oliver, six new names, Erica altiphila E.G.H. Oliver, Erica dracomontana E.G.H. Oliver, Erica esteriana E.G.H. Oliver, Erica exleeana E.G.H. Oliver, Erica madida E.G.H. Oliver, Erica petricola E.G.H. Oliver and four alterations to synonymy, Erica caespitosa Hilliard & Burtt (= Philippia tristis H. Bol.), Erica lasciva Salisb. (= Erica accommodata Klotzsch var. ebracteata H. Bol. and=Philippia stokoei L. Guthrie), Erica peltata Andr. (= Philippia pallida L. Guthrie), Erica tristis Bartl. (= Philippia chamissonis Klotzsch and Philippia absinthoides (Thunb.) E.G.H. Oliver)
Studies in the Ericoideae. IV. New species and some taxonomic and nomenclatural changes in the Cape Flora Region
No full textSixteen taxonomic and nomenclatural changes are made in the genera Acrostemon Klotzsch, Arachnocalyx Compton, Nagelocarpus Bullock, Philippia Klotzsch, Scyphogyne Brongn. and Simocheilus Klotzsch (Ericoideae). Nine new species are described: Erica abelii E.G.H. Oliver, Philippia alticola E.G.H. Oliver, Philippia elsieana E.G.H. Oliver, Philippia esterhuyseniae E.G.H. Oliver, Philippia irrorata E.G.H. Oliver, Philippia notholeeana E.G.H. Oliver, Philippia procaviana E.G.H. Oliver, and Scyphogyne orientalis E.G.H. Oliver
Studies in the Ericoideae (Ericaceae). XIII. Three new species of <i>Erica</i> from the southwestern Cape
No full textWith the recent inclusion of the genus Blaeria under Erica, three new species, formerly regarded as ‘incertae’ in that genus, are now described: Erica chiroptera E.G.H. Oliver from the Kogelberg Reserve, Erica hermani E.G.H. Oliver and Erica ioniana E.G.H. Oliver, both highly localised endemics from Hermanus
Studies in the Ericoideae (Ericaceae). VIII. New species in Erica, section <i>Pseuderemia</i>, from southern Africa
No full textThree new species are described in the genus Erica L.: E abbottii E.G.H Oliver, endemic to the South Coast of Natal and neighbouring Transkei. E. swaziensis E.G.H Oliver, a Swaziland endemic, and E. ingeana E.G.H Oliver which is confined to the high mountains in the eastern Little Karoo of the Cape Province
New species of <i>Erica</i> (Ericaceae) from the Cape Province
No full textThree new species of Erica L. (Ericaceae) are described from the southern parts of the Cape Province. E. amicorum E.G.H. Oliver, an endemic marsh species from the Langeberg near Riversdale, is one of the most distinctive species in the genus on account of its almost free reflexed petals, reflexed stamens and exserted gynoecium. The mat-forming E. tegetiformis E.G.H Oliver is allied to E. senilis Klotzsch ex Benth. and E. eriophoros Guth. & Bol., all occurring at high altitudes in the Cold Bokkeveld and Cedarberg. E. cunoniensis E.G.H. Oliver is allied to the E. squarrosa Salisb./E. gysbertii Guth. & Bol. complex and is very localized in the mountains of the western part of the Caledon Division near Rooi Els
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
A new species of orchid from the north-western Cape
No full textThe new species, Corycium ingeanum E.G.H. Oliver (Orchidaceae), is described from the Cape Province. It is allied to the common C. orobanchoides Sw. and the rare C. deftexum H. Bol. from both of which it differs in numerous characters, the most noticeable being the larger more open flowers with striking dark red to black tips to the petals
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