Designation

Designation [ Taxonomy ]	Dictionary of botanic terminology - index of names
Abbreviation: Des.

Te nomenclatural act of an author in fixing or identifying, by an express statement, the name-bearing type of a newly or previously established nominal genus, subgenus, species, or subspecies.
Identifying name by which a taxon is called and classified or distinguished from others.

ORIGINAL DESIGNATION
The designation of the name-bearing type of a nominal taxon when it is established.
SUBSEQUENT DESIGNATION
The designation of the name-bearing type of a nominal taxon published after the nominal taxon was established.

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