New and interesting species of the genus Muelleria (Bacillariophyta) from the Antarctic region and South Africa

During a survey of the terrestrial diatom flora of some sub-Antarctic islands in the southern Indian and Atlantic Oceans and of the Antarctic continent, more than 15 taxa belonging to the genus Muelleria were observed. Nine of these taxa are described as new species using light and scanning electron...

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Detalles Bibliográficos
Autor principal: Mataloni, María Gabriela
Publicado: 2010
Materias:
Bacillariophyta
Bryophyta
Diploneis
Gibbula
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00318884_v49_n1_p22_VanDeVijver
http://hdl.handle.net/20.500.12110/paper_00318884_v49_n1_p22_VanDeVijver
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00318884_v49_n1_p22_VanDeVijver
record_format dspace
spelling paper:paper_00318884_v49_n1_p22_VanDeVijver2023-06-08T14:57:36Z New and interesting species of the genus Muelleria (Bacillariophyta) from the Antarctic region and South Africa Mataloni, María Gabriela Bacillariophyta Bryophyta Diploneis Gibbula During a survey of the terrestrial diatom flora of some sub-Antarctic islands in the southern Indian and Atlantic Oceans and of the Antarctic continent, more than 15 taxa belonging to the genus Muelleria were observed. Nine of these taxa are described as new species using light and scanning electron microscopy. Comments are made on their systematic position and how they are distinguished from other species in the genus. Additionally, two previously unrecognized taxa within the genus were discovered in samples from South Africa. One of these, Muelleria taylorii Van de Vijver & Cocquyt sp. nov., is new to science; the other, Muelleria vandermerwei (Cholnoky) Van de Vijver & Cocquyt nov. comb., had been included in the genus Diploneis. The large number of new Muelleria taxa on the (sub)-Antarctic locations is not surprising. Species in Muelleria occur rarely in collections; in many habitats, it is unusual to find more than 1-2 valves in any slide preparation. As a result, records are scarce. The practice of "force-fitting" (shoehorning) specimens into descriptions from common taxonomic keys (and species drift) results in European species, such as M. gibbula and M. linearis, being applied to Antarctic forms in ecological studies. Finally, the typical terrestrial habitats of soils, mosses and ephemeral water bodies of most of these taxa have been poorly studied in the past. Fil:Mataloni, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00318884_v49_n1_p22_VanDeVijver http://hdl.handle.net/20.500.12110/paper_00318884_v49_n1_p22_VanDeVijver
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Bacillariophyta
Bryophyta
Diploneis
Gibbula
spellingShingle Bacillariophyta
Bryophyta
Diploneis
Gibbula
Mataloni, María Gabriela
New and interesting species of the genus Muelleria (Bacillariophyta) from the Antarctic region and South Africa
topic_facet Bacillariophyta
Bryophyta
Diploneis
Gibbula
description During a survey of the terrestrial diatom flora of some sub-Antarctic islands in the southern Indian and Atlantic Oceans and of the Antarctic continent, more than 15 taxa belonging to the genus Muelleria were observed. Nine of these taxa are described as new species using light and scanning electron microscopy. Comments are made on their systematic position and how they are distinguished from other species in the genus. Additionally, two previously unrecognized taxa within the genus were discovered in samples from South Africa. One of these, Muelleria taylorii Van de Vijver & Cocquyt sp. nov., is new to science; the other, Muelleria vandermerwei (Cholnoky) Van de Vijver & Cocquyt nov. comb., had been included in the genus Diploneis. The large number of new Muelleria taxa on the (sub)-Antarctic locations is not surprising. Species in Muelleria occur rarely in collections; in many habitats, it is unusual to find more than 1-2 valves in any slide preparation. As a result, records are scarce. The practice of "force-fitting" (shoehorning) specimens into descriptions from common taxonomic keys (and species drift) results in European species, such as M. gibbula and M. linearis, being applied to Antarctic forms in ecological studies. Finally, the typical terrestrial habitats of soils, mosses and ephemeral water bodies of most of these taxa have been poorly studied in the past.
author Mataloni, María Gabriela
author_facet Mataloni, María Gabriela
author_sort Mataloni, María Gabriela
title New and interesting species of the genus Muelleria (Bacillariophyta) from the Antarctic region and South Africa
title_short New and interesting species of the genus Muelleria (Bacillariophyta) from the Antarctic region and South Africa
title_full New and interesting species of the genus Muelleria (Bacillariophyta) from the Antarctic region and South Africa
title_fullStr New and interesting species of the genus Muelleria (Bacillariophyta) from the Antarctic region and South Africa
title_full_unstemmed New and interesting species of the genus Muelleria (Bacillariophyta) from the Antarctic region and South Africa
title_sort new and interesting species of the genus muelleria (bacillariophyta) from the antarctic region and south africa
publishDate 2010
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00318884_v49_n1_p22_VanDeVijver
http://hdl.handle.net/20.500.12110/paper_00318884_v49_n1_p22_VanDeVijver
work_keys_str_mv AT matalonimariagabriela newandinterestingspeciesofthegenusmuelleriabacillariophytafromtheantarcticregionandsouthafrica
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