Reinvestigation of the type material for Odontidium hyemale (Roth) Kützing and related species, with description of four new species in the genus Odontidium (Fragilariaceae, Bacillariophyta)

Ingrid Jüttner; David M. Williams; Zlatko Levkov; Elisa Falasco; Maurizio Battegazzore; Marco Cantonati; Bart Van de Vijver; Catalena Angele; Luc Ector

doi:10.11646/phytotaxa.234.1.1

Issue: Vol. 234 No. 1: 11 November 2015

Type: Article

Published: 2015-11-11

DOI: 10.11646/phytotaxa.234.1.1

Page range: 1–36

Abstract views: 40

PDF downloaded: 1

**Reinvestigation of the type material for Odontidium hyemale (Roth) Kützing and related species, with description of four new species in the genus Odontidium (Fragilariaceae, Bacillariophyta)**

Ingrid Jüttner⁺⁻
David M. Williams⁺⁻
Zlatko Levkov⁺⁻
Elisa Falasco⁺⁻
Maurizio Battegazzore⁺⁻
Marco Cantonati⁺⁻
Bart Van de Vijver⁺⁻
Catalena Angele⁺⁻
Luc Ector⁺⁻

National Museum of Wales, Department of Natural Sciences, Cathays Park, Cardiff, CF10 3NP

Department of Life Sciences, the Natural History Museum, Cromwell Road, London, SW7 5BD

Institute of Biology, Faculty of Natural Sciences, Gazi Baba bb, 1000 Skopje

Dipartimento di Biologia Animale e dell’Uomo, Università di Torino, via Accademia Albertina 13, I–10123 Torino

ARPA Piemonte, Dipartimento di Cuneo, Str. Vecchia di B.S. Dalmazzo 11, I–12100 Cuneo

Museo delle Scienze, Corso del Lavoro e della Scienza 3, I–38123 Trento

Botanic Garden Meise, Department of Cryptogamy (Bryophyta & Thallophyta), Nieuwelaan 38, B–1860 Meise

National Museum of Wales, Department of Learning, Participation and Interpretation, Cathays Park, Cardiff, CF10 3NP

Luxembourg Institute of Science and Technology (LIST), Environmental Research and Innovation Department (ERIN), 41 rue du Brill, L–4422 Belvaux

Diatoma diversity morphology nomenclature Odontidium springs Algae Faroe Islands Austria Switzerland Italy Macedonia

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Abstract

The type materials of Odontidium hyemale, Odontidium anomalum var. longissimum (longissima), Diatoma hiemale var. maxima (maximum), Odontidium anomalum, and additional materials from the Faroe Islands, Austria, Switzerland, Italy and Macedonia were studied in LM and SEM. The nomenclature of these taxa is explained and original drawings presented. In addition, two new species, Odontidium rostratum and Odontidium apiculatum are described from Macedonia and Italy. The history and taxonomic changes of Odontidium are presented and its separation from Diatoma at the genus level explained in more detail.