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Research article - Peer-reviewed, 2011

The Amsterdam Declaration on Fungal Nomenclature

Hawksworth, David L.; Crous, Pedro W.; Redhead, Scott A.; Reynolds, Don R.; Samson, Robert A.; Seifert, Keith A.; Taylor, John W.; Wingfield, Michael J.; Abaci, Ozlem; Aime, Catherine; Asan, Ahmet; Bai, Feng-Yan; de Beer, Z. Wilhelm; Begerow, Dominik; Berikten, Derya; Boekhout, Teun; Buchanan, Peter K.; Burgess, Treena; Buzina, Walter; Cai, Lei;
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The Amsterdam Declaration on Fungal Nomenclature was agreed at an international symposium convened in Amsterdam on 19-20 April 2011 under the auspices of the International Commission on the Taxonomy of Fungi (ICTF). The purpose of the symposium was to address the issue of whether or how the current system of naming pleomorphic fungi should be maintained or changed now that molecular data are routinely available. The issue is urgent as mycologists currently follow different practices, and no consensus was achieved by a Special Committee appointed in 2005 by the International Botanical Congress to advise on the problem. The Declaration recognizes the need for an orderly transitition to a single-name nomenclatural system for all fungi, and to provide mechanisms to protect names that otherwise then become endangered. That is, meaning that priority should be given to the first described name, except where that is a younger name in general use when the first author to select a name of a pleomorphic monophyletic genus is to be followed, and suggests controversial cases are referred to a body, such as the ICTF, which will report to the Committee for Fungi. If appropriate, the ICTF could be mandated to promote the implementation of the Declaration. In addition, but not forming part of the Declaration, are reports of discussions held during the symposium on the governance of the nomenclature of fungi, and the naming of fungi known only from an environmental nucleic acid sequence in particular. Possible amendments to the Draft BioCode (2011) to allow for the needs of mycologists are suggested for further consideration, and a possible example of how a fungus only known from the environment might be described is presented.


Anamorph; Article 59; BioCode; Candidate species; Environmental sequences; International Code of Botanical Nomenclature; MycoCode; Pleomorphic fungi; Teleomorph

Published in

IMA fungus
2011, volume: 2, number: 1, pages: 105-112
Publisher: BMC

Authors' information

Hawksworth, David L.
Natural History Museum London
Hawksworth, David L.
Complutense University of Madrid
Crous, Pedro W.
Westerdijk Fungal Biodiversity Institute (KNAW)
Redhead, Scott A.
Agriculture and Agri Food Canada
Reynolds, Don R.
University of California Berkeley
Samson, Robert A.
Westerdijk Fungal Biodiversity Institute (KNAW)
Seifert, Keith A.
Agriculture and Agri Food Canada
Taylor, John W.
University of California Berkeley
Wingfield, Michael J.
University of Pretoria
Abaci, Ozlem
Ege University
Aime, Catherine
Louisiana State University
Asan, Ahmet
Trakya University
Bai, Feng-Yan
Chinese Academy of Sciences
de Beer, Z. Wilhelm
University of Pretoria
Begerow, Dominik
Ruhr University Bochum
Berikten, Derya
Anadolu University
Boekhout, Teun
Westerdijk Fungal Biodiversity Institute (KNAW)
Buchanan, Peter K.
Landcare Research - New Zealand
Burgess, Treena
Murdoch University
Buzina, Walter
Medical University of Graz
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