Authors of Plant Names (Brummitt & Powell) by Richard Kenneth Brummitt and C. Emma Powell, 1992, is a print database of accepted standardized abbreviations used for citing the author who validly published the name of a taxon.[1][2] The database is now maintained online at the International Plant Names Index.[3] The book provides recommended abbreviations for authors' names that help to distinguish authors with the same surname when giving the full name of a taxon. It deals authors who validly published the name of a flowering plant, gymnosperm, fern, bryophyte, algae, fungi or fossil plants.[1][3] Prior to its publication in 1992, many abbreviations for authors to be cited could be found in Taxonomic literature. A selective guide to botanical publications and collections with dates, commentaries and types. by F. A. Stafleu & R. F. Cowen, 1976–1988.[4]
The International Code of Nomenclature for algae, fungi, and plants (ICN) governs the naming of these organisms, and suggests that a taxon be fully identified by its name and the author, but does not require that abbreviations be used when citing an author for a taxon. When abbreviations are used, the ICN recommends that Brummitt & Powell's Authors of plant names (1992), and the websites, the International Plant Names Index and the Index Fungorum can be used to find "unambiguous" abbreviations.[5] Brummitt & Powell may not be international in scope, and it may be missing abbreviations for authors who validly published taxa during some time spans.[1] A full name, rather than an abbreviation, may also make it easier to locate the original publication for the taxon name.[1]