Scientific names of plants

PROTOLOGUE

All the elements of the first publication of a scientific name are called the "protologue" of the name. It may comprise a description, a diagnosis, citation of specimens, illustrations, critical remarks etc.

 

TYPES

A nomenclatural type is a specimen selected to serve as a permanent reference for the name of a plant. As a result, these specimens are extremely important for the correct application of plant names. (For full information see the International Code of Botanical Nomenclature)

There are several different categories of types; the most common are:

  • Holotype: The single specimen designated as the type of a name by the original author.

  • Isotype: Any duplicate specimen of the holotype.

  • Syntype: Any of two or more specimens listed in an original description published before 1958, when the International Code of Nomenclature did not yet prescribe the designation of nomenclatural types.

  • Paratype: A specimen not formally designated as a type but cited along with the type collection in the original description of a taxon.

  • Lectotype: A specimen chosen by a later researcher to serve as if it was the holotype. It is chosen among the syntypes.

  • Neotype: A specimen chosen by a later researcher to serve in place of a holotype when all specimens available to the original publishing author of a scientific name have been lost or destroyed.
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