1,720,962 research outputs found
Two novel species of Urnula (Sarcosomataceae, Pezizales) from Yunnan, China
No full textLu, Jin-Rong, Yu, Feng-Ming, Zhou, De-Qun, Lu, Zhi-Yun, Zhang, Ying, Zhao, Qi (2023): Two novel species of Urnula (Sarcosomataceae, Pezizales) from Yunnan, China. Phytotaxa 619 (1): 86-96, DOI: 10.11646/phytotaxa.619.1.4, URL: http://dx.doi.org/10.11646/phytotaxa.619.1.
FIGURE 1 in Two novel species of Urnula (Sarcosomataceae, Pezizales) from Yunnan, China
No full textFIGURE 1. Maximum likelihood (ML) tree of Urnula and its allies within Sarcosomatacea inferred from combined ITS and LSU dataset. Bootstrap support values for ML ≥ 80 of SH-aLRT or 95 of UFB and posterior probability for BI ≥ 0.95 are indicated above the nodes and separated by '-/-/-' (SH-aLRT/UFB/BIPP). Specimens of the current study are given in red. The letter HT after the sample stands for holotype.Published as part of <i>Lu, Jin-Rong, Yu, Feng-Ming, Zhou, De-Qun, Lu, Zhi-Yun, Zhang, Ying & Zhao, Qi, 2023, Two novel species of Urnula (Sarcosomataceae, Pezizales) from Yunnan, China, pp. 86-96 in Phytotaxa 619 (1)</i> on page 90, DOI: 10.11646/phytotaxa.619.1.4, <a href="http://zenodo.org/record/8425726">http://zenodo.org/record/8425726</a>
FIGURE 3 in Two novel species of Urnula (Sarcosomataceae, Pezizales) from Yunnan, China
No full textFIGURE 3. Urnula subcrateria (Holotype: HKAS 129214). a, b fresh specimens in the field; c excipulum; d medullary excipulum; e ectal excipulum; f paraphyses; g paraphyses and asci; h external hairs; i type 1 of external hairs indicated by the arrow; j type 2 of external hairs; k–p asci with ascospores, q–x ascospores. Bars: a = 2.5 cm; b = 2 cm; c, k–p= 100 μm; d–i= 20 μm; j, q–x = 10 μm.Published as part of <i>Lu, Jin-Rong, Yu, Feng-Ming, Zhou, De-Qun, Lu, Zhi-Yun, Zhang, Ying & Zhao, Qi, 2023, Two novel species of Urnula (Sarcosomataceae, Pezizales) from Yunnan, China, pp. 86-96 in Phytotaxa 619 (1)</i> on page 93, DOI: 10.11646/phytotaxa.619.1.4, <a href="http://zenodo.org/record/8425726">http://zenodo.org/record/8425726</a>
FIGURE 2 in Two novel species of Urnula (Sarcosomataceae, Pezizales) from Yunnan, China
No full textFIGURE 2 Urnula ailaoshanensis (Holotype: HKAS 129212). a, b fresh specimens in the field; c, d dry materials from type samples; e cross-section through apothecia; f medullary excipulum and ectal excipulum in Congo red; g external hairs; h asci and paraphyses; i–k asci with ascospores; l paraphyses; m asci apex; n ascospores in Melzer's reagent; o ascospores in H 2 O. Bars: e = 500 μm; f = 150 μm; g = 30 μm; h–k = 200 μm; l = 30 μm; m–o =20 μm.Published as part of <i>Lu, Jin-Rong, Yu, Feng-Ming, Zhou, De-Qun, Lu, Zhi-Yun, Zhang, Ying & Zhao, Qi, 2023, Two novel species of Urnula (Sarcosomataceae, Pezizales) from Yunnan, China, pp. 86-96 in Phytotaxa 619 (1)</i> on page 91, DOI: 10.11646/phytotaxa.619.1.4, <a href="http://zenodo.org/record/8425726">http://zenodo.org/record/8425726</a>
FIGURE 1 in A new species of Helvella (Helvellaceae, Pezizomycetes) within the H. macropus group from China
No full textFIGURE 1. Maximum likelihood (ML) tree of Helvella and its allies within Helvellaceae inferred from a combined LSU, TEF and HSP90 dataset. Bootstrap support values for ML ≥ 80 of SH-aLRT or 95 of UFB and posterior probability for BIPP ≥ 0.95 are indicated above the nodes and separated by '-/-/-' (SH-aLRT/UFB/BIPP). Specimens of the current study are given in red. Type specimens are in bold. The letter ET after the sample stands for epitype, HT for holotype, and IET for isoepitype.Published as part of Lu, Jin-Rong, Yu, Feng-Ming, Lei, Lei, Zhang, Ying & Zhao, Qi, 2023, A new species of Helvella (Helvellaceae, Pezizomycetes) within the H. macropus group from China, pp. 212-222 in Phytotaxa 601 (3) on page 215, DOI: 10.11646/phytotaxa.601.3.2, http://zenodo.org/record/814175
Helvella L.
No full textKey to the species in <i>Helvella macropus</i> group <p>1 Apothecium cupuliform......................................................................................................................................................................2</p> <p> 1’ Apothecium ephippioid.............................................................................................................................................. <i>H. ephippioides</i></p> <p> 2 Ascospores elliptic................................................................................................................................................................ <i>H. fibrosa</i></p> <p>2’ Ascospores subelliptic, fusiform to subfusiform................................................................................................................................3</p> <p> 3 Hymenium brown to dark brown, constantly mottled with patches of paler pigmentation................................................ <i>H. guttata</i></p> <p> 3’ Hymenium mouse-grey, grey-beige or greyish brown.................................................................................................... <i>H. macropus</i></p>Published as part of <i>Lu, Jin-Rong, Yu, Feng-Ming, Lei, Lei, Zhang, Ying & Zhao, Qi, 2023, A new species of Helvella (Helvellaceae, Pezizomycetes) within the H. macropus group from China, pp. 212-222 in Phytotaxa 601 (3)</i> on page 220, DOI: 10.11646/phytotaxa.601.3.2, <a href="http://zenodo.org/record/8141752">http://zenodo.org/record/8141752</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
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