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Catalogue of Type Specimens in the Agriculture and Agri-Food Canada National Collection of Vascular Plants (DAO)

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(Date Modified March-22-2004)

What is a type specimen?

It is the specimen selected by a botanist as an example of a particular species (and/or category of plants). Current international rules of naming plants require that a new name of a newly discovered species is supported by a type specimen in a recognized collection. The type is frequently the most clear indication of what a plant name represents and types are often examined so that plant names can be properly applied.

Several kinds of types are officially recognized in the International Code of Botanical Nomenclature


McNeill, J., F. R. Barrie, H. M. Burdet, V. Demoulin, D. L. Hawksworth, K. Marhold, D. H. Nicholson, J. Prado, P. C. Silva, J. E. Skog, J. H. Wiersema & N. J. Turland. 2006. International Code of Botanical Nomenclature (Vienna Code). Regnum Vegetabile 146. A.R.G. Gantner Verlag KG. ISBN 0080-0694

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Catalogue of Type Specimens in the Vascular Plant Herbarium (PDF Version, 1187 KB)

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