1,721,001 research outputs found
A molecular perspective on generic concepts in the Hypotrachyna clade (Parmeliaceae, Ascomycota)
No full textDivakar, Pradeep K., Crespo, Ana, Núñez-Zapata, Jano, Flakus, Adam, Sipman, Harrie J.M., Elix, John A., Lumbsch, H. Thorsten (2013): A molecular perspective on generic concepts in the Hypotrachyna clade (Parmeliaceae, Ascomycota). Phytotaxa 132 (1): 21-38, DOI: 10.11646/phytotaxa.132.1.2, URL: https://www.mendeley.com/catalogue/df27a472-e3f0-3394-ae14-bd2cf1b78702
Hypotrachyna nagalandica Divakar, A. Crespo, Sipman, Elix, comb. nov.
No full textHypotrachyna nagalandica (K. Singh & Sinha) Divakar, A. Crespo, Sipman, Elix & Lumbsch, comb. nov. MycoBank No.: MB 803590 Parmelina nagalandica K. Singh & Sinha (1993: 464); Parmelinopsis nagalandica (K. Singh & Sinha) Divakar & Upreti (2005: 288).Published as part of Divakar, Pradeep K., Crespo, Ana, Núñez-Zapata, Jano, Flakus, Adam, Sipman, Harrie J. M., Elix, John A. & Lumbsch, H. Thorsten, 2013, A molecular perspective on generic concepts in the Hypotrachyna clade (Parmeliaceae, Ascomycota), pp. 21-38 in Phytotaxa 132 (1) on page 34, DOI: 10.11646/phytotaxa.132.1.2, http://zenodo.org/record/508604
Hypotrachyna expallida Divakar, A. Crespo, Sipman, Elix, comb. nov.
No full textHypotrachyna expallida (Kurok.) Divakar, A. Crespo, Sipman, Elix & Lumbsch, comb. nov. MycoBank No.: MB 803585 Parmelia expallida Kurokawa (1968: 191); Parmelina expallida (Kurok.) Hale (1974a: 482); Parmelinopsis expallida (Kurok.) Elix & Hale (1987: 242).Published as part of Divakar, Pradeep K., Crespo, Ana, Núñez-Zapata, Jano, Flakus, Adam, Sipman, Harrie J. M., Elix, John A. & Lumbsch, H. Thorsten, 2013, A molecular perspective on generic concepts in the Hypotrachyna clade (Parmeliaceae, Ascomycota), pp. 21-38 in Phytotaxa 132 (1) on page 33, DOI: 10.11646/phytotaxa.132.1.2, http://zenodo.org/record/508604
Hypotrachyna neodamaziana Divakar, A. Crespo, Sipman, Elix, comb. nov.
No full textHypotrachyna neodamaziana (Elix & J. Johnst.) Divakar, A. Crespo, Sipman, Elix & Lumbsch, comb. nov. MycoBank No.: MB 803591 Parmelina neodamaziana Elix & Johnston (1986: 155); Parmelinopsis neodamaziana (Elix & J. Johnst.) Elix & Hale (1987: 243).Published as part of Divakar, Pradeep K., Crespo, Ana, Núñez-Zapata, Jano, Flakus, Adam, Sipman, Harrie J. M., Elix, John A. & Lumbsch, H. Thorsten, 2013, A molecular perspective on generic concepts in the Hypotrachyna clade (Parmeliaceae, Ascomycota), pp. 21-38 in Phytotaxa 132 (1) on page 34, DOI: 10.11646/phytotaxa.132.1.2, http://zenodo.org/record/508604
Hypotrachyna heteroloba Divakar, A. Crespo, Sipman, Elix, comb. nov.
No full textHypotrachyna heteroloba (Zahlbr.) Divakar, A. Crespo, Sipman, Elix & Lumbsch, comb. nov. MycoBank No.: MB 803586 Parmelia heteroloba Zahlbruckner (1909: 171); Parmelina heteroloba (Vain.) Hale (1974a: 482); Parmelinopsis heteroloba (Vain.) Elix & Hale (1987: 242).Published as part of Divakar, Pradeep K., Crespo, Ana, Núñez-Zapata, Jano, Flakus, Adam, Sipman, Harrie J. M., Elix, John A. & Lumbsch, H. Thorsten, 2013, A molecular perspective on generic concepts in the Hypotrachyna clade (Parmeliaceae, Ascomycota), pp. 21-38 in Phytotaxa 132 (1) on page 33, DOI: 10.11646/phytotaxa.132.1.2, http://zenodo.org/record/508604
Hypotrachyna jamesii Divakar, A. Crespo, Sipman, Elix, comb. nov.
No full textHypotrachyna jamesii (Hale) Divakar, A. Crespo, Sipman, Elix & Lumbsch, comb. nov. MycoBank No.: MB 803587 Parmelia jamesii Hale (1972: 179); Parmelina jamesii (Hale) Hale (1976: 35); Parmelinopsis jamesii (Hale) Elix & Hale (1987: 242). Hypotrachyna megadactyla (Aptroot) Divakar, A. Crespo, Sipman, Elix & Lumbsch, comb. nov. MycoBank No.: MB 803588 Parmelinopsis megadactyla Aptroot (1991: 242). Hypotrachyna microlobulata (D.D. Awasthi) Divakar, A. Crespo, Sipman, Elix & Lumbsch, comb. nov. MycoBank No.: MB 803589 Parmelia microlobulata Awasthi (1976: 182); Parmelinopsis microlobulata (D.D. Awasthi) Elix & Hale (1987: 242).Published as part of Divakar, Pradeep K., Crespo, Ana, Núñez-Zapata, Jano, Flakus, Adam, Sipman, Harrie J. M., Elix, John A. & Lumbsch, H. Thorsten, 2013, A molecular perspective on generic concepts in the Hypotrachyna clade (Parmeliaceae, Ascomycota), pp. 21-38 in Phytotaxa 132 (1) on pages 33-34, DOI: 10.11646/phytotaxa.132.1.2, http://zenodo.org/record/508604
Hypotrachyna neoprotocetrarica Divakar, A. Crespo, Sipman, Elix, nom. nov.
No full textHypotrachyna neoprotocetrarica Divakar, A. Crespo, Sipman, Elix & Lumbsch, nom. nov. MycoBank No.: MB 803592 Parmelinopsis protocetrarica Elix (1993a: 119); non Hypotrachyna protocetrarica Elix, T.H. Nash & Sipman in Sipman et al. (2009: 127). Hypotrachyna schindleri (Hale) Divakar, A. Crespo, Sipman, Elix & Lumbsch, comb. nov. MycoBank No.: MB 803593 Parmelina schindleri Hale (1976: 44); Parmelinopsis schindleri (Hale) Elix & Hale (1987: 243).Published as part of Divakar, Pradeep K., Crespo, Ana, Núñez-Zapata, Jano, Flakus, Adam, Sipman, Harrie J. M., Elix, John A. & Lumbsch, H. Thorsten, 2013, A molecular perspective on generic concepts in the Hypotrachyna clade (Parmeliaceae, Ascomycota), pp. 21-38 in Phytotaxa 132 (1) on page 34, DOI: 10.11646/phytotaxa.132.1.2, http://zenodo.org/record/508604
Flora mszaków i porostów Kanionu Colca (Peru) - badania rekonesansowe Bryophyte and lichen flora of the Colca Canyon (Peru) - reconnaissance research /
No full textTyt. z nagłówka.Bibliogr. s. 202.Dostępny również w formie drukowanej.STRESZCZENIE: Artykuł jest pierwszym doniesieniem o długofalowym projekcie, mającym na celu poznanie różnorodności gatunkowej mszaków i porostów na obszarze projektowanego Parku Narodowego Kanion Colca i Dolina Wulkanów (Arequipa, Peru) oraz ich ekologii w kontekście zróżnicowania środowiska abiotycznego. Środowisko przyrodnicze tego najgłębszego kanionu świata nie doczekało się dotychczas kompleksowego opracowania flory mszaków i porostów. Już na podstawie wstępnych obserwacji stwierdzono ich znaczący udział w szacie roślinnej tego obszaru oraz potencjalnie duże bogactwo gatunkowe wynikające ze znacznego zróżnicowania siedlisk. Istotnym wynikiem rozpoczętych badań jest odkrycie pierwszych stanowisk porostów Lecanora leuckertiana w Ameryce Południowej i Lepraria impossibilis na Półkuli Południowej. Dalsze badania powinny zaowocować opracowaniem pełnej listy gatunków mszaków i porostów Parku Narodowego Kanion Colca i Dolina Wulkanów oraz dostarczyć argumentów do ochrony jego unikalnej przyrody. SŁOWA KLUCZOWE: Ameryka Południowa, Andy, Peru, Kanion Colca, Bryophyta, Marchantiophyta, Anthocerotophyta, grzyby zlichenizowane (porosty), bioróżnorodność, ochrona gatunkowa. ABSTRACT: The paper is a preliminary report of a long-term project that aims at completing the flora of bryophytes and lichens in the projected Canyon Colca and the Valley of the Volcanoes National Park area (Arequipa, Peru). The bryophytes and lichens of this deepest canyon in the world has remained underexplored for a long time. These organisms dominate in the vegetation cover and exhibit a remarkable species diversity resulting from habitat richness in this area. The important result of preliminary studies was discovered the first records of lichens Lecanora leuckertiana in South America and Lepraria impossibilis in the Southern Hemisphere. Further researeh should result in completing floristic lists of bryophytes and lichens of the Canyon Colca and the Valley of the Volcanoes National Park and should provide arguments for the protection of its unique wild life. KEYWORDS: Peru, Bryophyta, Marchantiophyta, Anthocerotophyta, South America, Andes, Colca Canyon, lichenized fungi (lichens), biodiversity, species conservation
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
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