|INTERNATIONAL CODE OF BOTANICAL NOMENCLATURE online|
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Principle I Botanical nomenclature is independent of zoological and bacteriological nomenclature. The Code applies equally to names of taxonomic groups treated as plants whether or not these groups were originally so treated (see Pre. 7).
Principle II The application of names of taxonomic groups is determined by means of nomenclatural types.
Principle III The nomenclature of a taxonomic group is based upon priority of publication.
Principle IV Each taxonomic group with a particular circumscription, position, and rank can bear only one correct name, the earliest that is in accordance with the Rules, except in specified cases.
Principle V Scientific names of taxonomic groups are treated as Latin regardless of their derivation.
Principle VI The Rules of nomenclature are retroactive unless expressly limited.
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