Studies on type material from Kützing's diatom collection II: Synedra acus Kützing, Synedra arcus Kützing, their morphology, types and nomenclature

Type specimens of Kützing's similarly named Synedra acus (= Ulnaria acus) and Synedra arcus (= Tabularia arcus D.M. Williams, nov. comb.) are examined with light and electron microscopy. Their morphology is documented and their nomenclature and typification clarified. Comments are made on sever...

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Bibliographic Details
Published in:Diatom research 2019-10, Vol.34 (4), p.237-250
Main Authors: Williams, David M., Blanco, Saúl
Format: Article
Language:English
Subjects:
Animal morphology
Classification
Diatoms
Electron microscopy
Kützing
Morphology
New species
Nomenclature
Synedra
Synedra acus
Tabularia
Taxonomic revision
type material
Type specimens
Types
typification
Ulnaria
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Summary:Type specimens of Kützing's similarly named Synedra acus (= Ulnaria acus) and Synedra arcus (= Tabularia arcus D.M. Williams, nov. comb.) are examined with light and electron microscopy. Their morphology is documented and their nomenclature and typification clarified. Comments are made on several other members of the genus Ulnaria that may be, or have been, confused with U. acus: Ulnaria schroeteri (Meister) D.M. Williams, comb. nov., and Ulnaria hunanensis Bing Liu, sp. nov. Tabularia minor (Kützing) D.M. Williams, comb. nov. (basionym: Synedra gailloni [var.] β minor Kützing) is also documented and characterized.
ISSN:0269-249X
2159-8347
DOI:10.1080/0269249X.2020.1711534