Cocconeis neuquina Frenguelli (Bacillariophyta): emended description, lectotypification, ecology, and geographical distribution

In this article, we examine the type material of Cocconeis neuquina Frenguelli from the type locality in Neuquén province and other samples in southern Santa Cruz province (Patagonia, Argentina). Cocconeis neuquina is a small species with an oval-subcircular to broadly elliptical valve outline. The...

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Publicado: 2018
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0269249X_v33_n2_p219_Garcia
http://hdl.handle.net/20.500.12110/paper_0269249X_v33_n2_p219_Garcia
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spelling paper:paper_0269249X_v33_n2_p219_Garcia2023-06-08T15:24:15Z Cocconeis neuquina Frenguelli (Bacillariophyta): emended description, lectotypification, ecology, and geographical distribution Bacillariophyceae Cocconeis diatoms freshwater Patagonia South America diatom freshwater environment geographical distribution morphology type locality ultrastructure Patagonia South America Bacillariophyceae Bacillariophyta Cocconeis In this article, we examine the type material of Cocconeis neuquina Frenguelli from the type locality in Neuquén province and other samples in southern Santa Cruz province (Patagonia, Argentina). Cocconeis neuquina is a small species with an oval-subcircular to broadly elliptical valve outline. The sternum valve is externally convex, striae are radiate and uniseriate, and areolae are rounded towards the mantle. The raphe valve is externally concave, the raphe is straight and filiform, striae are uniseriate, slightly radiate, and the first areola close to the mantle is drop-shaped. With this contribution we aim to clarify the morphology of this species, provide a more detailed description of valve ultrastructure, present its lectotypification and extend its geographical distribution. © 2018, © 2018 The International Society for Diatom Research. 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0269249X_v33_n2_p219_Garcia http://hdl.handle.net/20.500.12110/paper_0269249X_v33_n2_p219_Garcia
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Bacillariophyceae
Cocconeis
diatoms
freshwater
Patagonia
South America
diatom
freshwater environment
geographical distribution
morphology
type locality
ultrastructure
Patagonia
South America
Bacillariophyceae
Bacillariophyta
Cocconeis
spellingShingle Bacillariophyceae
Cocconeis
diatoms
freshwater
Patagonia
South America
diatom
freshwater environment
geographical distribution
morphology
type locality
ultrastructure
Patagonia
South America
Bacillariophyceae
Bacillariophyta
Cocconeis
Cocconeis neuquina Frenguelli (Bacillariophyta): emended description, lectotypification, ecology, and geographical distribution
topic_facet Bacillariophyceae
Cocconeis
diatoms
freshwater
Patagonia
South America
diatom
freshwater environment
geographical distribution
morphology
type locality
ultrastructure
Patagonia
South America
Bacillariophyceae
Bacillariophyta
Cocconeis
description In this article, we examine the type material of Cocconeis neuquina Frenguelli from the type locality in Neuquén province and other samples in southern Santa Cruz province (Patagonia, Argentina). Cocconeis neuquina is a small species with an oval-subcircular to broadly elliptical valve outline. The sternum valve is externally convex, striae are radiate and uniseriate, and areolae are rounded towards the mantle. The raphe valve is externally concave, the raphe is straight and filiform, striae are uniseriate, slightly radiate, and the first areola close to the mantle is drop-shaped. With this contribution we aim to clarify the morphology of this species, provide a more detailed description of valve ultrastructure, present its lectotypification and extend its geographical distribution. © 2018, © 2018 The International Society for Diatom Research.
title Cocconeis neuquina Frenguelli (Bacillariophyta): emended description, lectotypification, ecology, and geographical distribution
title_short Cocconeis neuquina Frenguelli (Bacillariophyta): emended description, lectotypification, ecology, and geographical distribution
title_full Cocconeis neuquina Frenguelli (Bacillariophyta): emended description, lectotypification, ecology, and geographical distribution
title_fullStr Cocconeis neuquina Frenguelli (Bacillariophyta): emended description, lectotypification, ecology, and geographical distribution
title_full_unstemmed Cocconeis neuquina Frenguelli (Bacillariophyta): emended description, lectotypification, ecology, and geographical distribution
title_sort cocconeis neuquina frenguelli (bacillariophyta): emended description, lectotypification, ecology, and geographical distribution
publishDate 2018
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0269249X_v33_n2_p219_Garcia
http://hdl.handle.net/20.500.12110/paper_0269249X_v33_n2_p219_Garcia
_version_ 1768541892036788224