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The lichen genus Schistophoron Stirt. (Ascomycetes, Graphidaceae) in Brazil with a world key to the species
No full textTorres, Jean Marc, Spielmann, Adriano Afonso, Aptroot, André, Cardoso, Karen Fernandes, Honda, Neli Kika (2020): The lichen genus Schistophoron Stirt. (Ascomycetes, Graphidaceae) in Brazil with a world key to the species. Cryptogamie, Mycologie 20 (13): 211-217, DOI: 10.5252/cryptogamie-mycologie2020v41a1
FIG. 1 in The lichen genus Schistophoron Stirt. (Ascomycetes, Graphidaceae) in Brazil with a world key to the species
No full textFIG. 1. — Geographic distribution of Schistophoron Stirt. species. The yellow dot corresponds to S. aurantiacum Aptroot & Sipman; the green dots to S. indicum Kr.P.Singh & Swarnalatha; the blue dots to S. tenue Stirt.; the red dot to S. muriforme Weerakoon & Aptroot; the violet dots to S. variabile Tibell.Published as part of Torres, Jean Marc, Spielmann, Adriano Afonso, Aptroot, André, Cardoso, Karen Fernandes & Honda, Neli Kika, 2020, The lichen genus Schistophoron Stirt. (Ascomycetes, Graphidaceae) in Brazil with a world key to the species, pp. 211-217 in Cryptogamie, Mycologie 20 (13) on page 213, DOI: 10.5252/cryptogamie-mycologie2020v41a13, http://zenodo.org/record/781498
FIG. 2. — A, B in The lichen genus Schistophoron Stirt. (Ascomycetes, Graphidaceae) in Brazil with a world key to the species
No full textFIG. 2. — A, B, Schistophoron indicum Kr.P.Singh & Swarnalatha (Spielmann et al. 9546): A, ascomata; B, ascospores, shape and septation. C-F, Schistophoron tenue Stirt. (Spielmann et al. 5368): C, ascomata; D, ascospores, shape and septation; E, scanning electronic photo of a mazedium; F, scanning electronic photo of ornamented ascospore. Scale bars: A-C, 0.5 mm; B-D, 2 µm; E, 50 µm; F, 1 µm.Published as part of Torres, Jean Marc, Spielmann, Adriano Afonso, Aptroot, André, Cardoso, Karen Fernandes & Honda, Neli Kika, 2020, The lichen genus Schistophoron Stirt. (Ascomycetes, Graphidaceae) in Brazil with a world key to the species, pp. 211-217 in Cryptogamie, Mycologie 20 (13) on page 215, DOI: 10.5252/cryptogamie-mycologie2020v41a13, http://zenodo.org/record/781498
Schistophoron indicum Kr. P. Singh & Swarnalatha (Singh & Swarnalatha 2011
No full textSchistophoron indicum Kr.P.Singh & Swarnalatha Lichenologist 43 (3): 209 (2011). — Type: India. Arunachal Pradesh: East Siang district, Gette Basti, alt. c. 500-700 m, 8.I.1983, K. P. Singh 2858 (holo-, BSA[BSA]; iso-, ASSAM [ASSAM]), fide Singh & Swarnalatha (2011). SPECIMEN EXAMINED. — Brazil. Mato Grosso Do Sul:Porto Murtinho, Fazenda Paleati, 21º34’56.02”S, 57º46’44.93”W, 95 m elev., corticolous, on tree trunk, footpath edge, open forest, slightly shaded, 21.IX.2011, A. A. Spielmann et al. 9546 (CGMS). KNOWN DISTRIBUTION. — Previously reported from East India (Singh & Swarnalatha 2011). Is the first report from Brazil.Published as part of Torres, Jean Marc, Spielmann, Adriano Afonso, Aptroot, André, Cardoso, Karen Fernandes & Honda, Neli Kika, 2020, The lichen genus Schistophoron Stirt. (Ascomycetes, Graphidaceae) in Brazil with a world key to the species, pp. 211-217 in Cryptogamie, Mycologie 20 (13) on page 213, DOI: 10.5252/cryptogamie-mycologie2020v41a13, http://zenodo.org/record/781498
Schistophoron variabile Tibell
No full text<i>Schistophoron variabile</i> Tibell <p> <i>Lichenologist</i> 14 (4): 242 (1982). — Type: Costa Rica. Prov. Limón: 1 km north-west of Pto. Limón, 10°00’N, 83°02’W, on coconut palms in rather open stand close to the shore, 1979, <i>Tibell 8514</i> (holo-, UPS[UPS]), fide Tibell (1982).</p> <p>KNOWN DISTRIBUTION. — Reported from Costa Rica and the Galapagos Islands (Tibell 1982, 1996).</p> NOTES <p> <i>Schistophoron variabile</i> has a white thallus with brown prothallus, sessile and subcircular to elliptical ascomata, ellipsoid, 2-3 transversely septate ascospores with smooth walls and absence of secondary substances (Tibell 1982, 1996).</p>Published as part of <i>Torres, Jean Marc, Spielmann, Adriano Afonso, Aptroot, André, Cardoso, Karen Fernandes & Honda, Neli Kika, 2020, The lichen genus Schistophoron Stirt. (Ascomycetes, Graphidaceae) in Brazil with a world key to the species, pp. 211-217 in Cryptogamie, Mycologie 20 (13)</i> on page 216, DOI: 10.5252/cryptogamie-mycologie2020v41a13, <a href="http://zenodo.org/record/7814980">http://zenodo.org/record/7814980</a>
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Schistophoron
No full textKEY TO THE SPECIES OF SCHISTOPHORON <p> 1. Ascospores muriform, ≥15.0 Μm long; psoromic acid present................. <i>S. muriforme</i> Weerakoon & Aptroot</p> <p>— Ascospores transversely septate or submuriform, ≤15.0 Μm long; psoromic acid absent............................... 2</p> <p>2. Ascospores transversely septate; lichexanthone present or secondary substances absent................................ 3</p> <p>— Ascospores transversely septate to submuriform; stictic and norstictic acid present...................................... 4</p> <p> 3. Ascospores transversally 1-septate; lichexanthone present; ascomata orange pruinose; prothallus orange-brown...................................................................................................... <i>S. aurantiacum</i> Aptroot & Sipman</p> <p> — Ascospores transversally 2-3 septate; secondary substances absent; ascomata epruinose; prothallus brown................................................................................................................................................... <i>S. variabile</i> Tibell</p> <p> 4. Ascomata constricted at the base, 0.4-0.9 mm long, 0.3-0.6 mm high; ascospores 11-15 × 6-8 Μm, submuriform (2-3 transverse and 1 longitudinal septa)................................................................................... <i>S. tenue</i> Stirt.</p> <p> — Ascomata not constricted at the base, 0.5-2.0 mm long, 0.25-0.4 mm high; ascospores submuriform (1 transverse and 1 longitudinal septum), (6-)7-9(-10) × 6-8 Μm..................... <i>S. indicum</i> Kr.P.Singh & Swarnalatha</p>Published as part of <i>Torres, Jean Marc, Spielmann, Adriano Afonso, Aptroot, André, Cardoso, Karen Fernandes & Honda, Neli Kika, 2020, The lichen genus Schistophoron Stirt. (Ascomycetes, Graphidaceae) in Brazil with a world key to the species, pp. 211-217 in Cryptogamie, Mycologie 20 (13)</i> on page 216, DOI: 10.5252/cryptogamie-mycologie2020v41a13, <a href="http://zenodo.org/record/7814980">http://zenodo.org/record/7814980</a>
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