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18-587: Both the taxonomic journal Taxon and the series Regnum Vegetabile are published by the IAPT. The latter series includes the International Code of Nomenclature for algae, fungi, and plants , Index Nominum Genericorum , and Index Herbariorum . The IAPT's primary purpose is the promotion and understanding of biodiversity—the discovery, naming, classification , and systematics of plants—for both living and fossil plants . Additionally, it promotes

36-711: A compromise with the 1930 congress. In the meantime, the second edition of the international rules followed the Vienna congress in 1905. These rules were published as the Règles internationales de la Nomenclature botanique adoptées par le Congrès International de Botanique de Vienne 1905 (or in English, International rules of Botanical Nomenclature adopted by the International Botanical Conference of Vienna 1905 ). Informally they are referred to as

54-537: Is Taxon , the only medium for the publication of both proposals to conserve or reject names and proposals to amend the International Code of Nomenclature for algae, fungi, and plants . Regnum Vegetabile is a series of books on topics of interest to plant taxonomists. Many of the volumes are literature surveys or monographs in the area of plant systematics. There are several volumes of general use: The series includes many additional volumes of interest to specialists in specific subdisciplines of botany, in addition to

72-487: Is Dirk C. Albach ( University of Oldenburg ). The journal is abstracted and indexed in: According to the Journal Citation Reports , the journal has a 2020 impact factor of 2.817. International Code of Nomenclature for algae, fungi, and plants The International Code of Nomenclature for algae, fungi, and plants ( ICN or ICNafp ) is the set of rules and recommendations dealing with

90-605: Is a bimonthly peer-reviewed scientific journal covering plant taxonomy . It is published by Wiley on behalf of the International Association for Plant Taxonomy , of which it is the official journal. It was established in 1952 and is the only place where nomenclature proposals and motions to amend the International Code of Nomenclature for algae, fungi, and plants (except for the rules concerning fungi ) can be published. The editor-in-chief

108-559: Is a separate code, the International Code of Nomenclature for Cultivated Plants , which gives rules and recommendations that supplement the ICN . The rules governing botanical nomenclature have a long and tumultuous history, dating back to dissatisfaction with rules that were established in 1843 to govern zoological nomenclature. The first set of international rules was the Lois de la nomenclature botanique ("Laws of botanical nomenclature") that

126-419: The ICN for some of these groups, as there are for fossils . The ICN can only be changed by an International Botanical Congress (IBC), with the International Association for Plant Taxonomy providing the supporting infrastructure. Each new edition supersedes the earlier editions and is retroactive back to 1753, except where different starting dates are specified. For the naming of cultivated plants there

144-1044: The Madrid Code , which reflects the decisions of the Twentieth International Botanical Congress met in Madrid , Spain, in July 2024, is prepared to be published in July 2025. The name of the Code is partly capitalized and partly not. The lower-case for "algae, fungi, and plants" indicates that these terms are not formal names of clades , but indicate groups of organisms that were historically known by these names and traditionally studied by phycologists , mycologists , and botanists . This includes blue-green algae ( Cyanobacteria ); fungi , including chytrids , oomycetes , and slime moulds ; photosynthetic protists and taxonomically related non-photosynthetic groups. There are special provisions in

162-737: The Vienna Rules (not to be confused with the Vienna Code of 2006). Some but not all subsequent meetings of the International Botanical Congress have produced revised versions of these Rules , later called the International Code of Botanical Nomenclature , and then International Code of Nomenclature for algae, fungi, and plants . The Nomenclature Section of the 18th International Botanical Congress in Melbourne, Australia (2011) made major changes: All

180-522: The Engler Medal in Silver (medal sensu lato) awarded from 1987 to 2001 for a monograph or other work in systematic botany and presented from 1990 to 2002 at various meetings, congresses, symposia, etc. In 2002 the latter medal was divided into three awards for outstanding publications in these areas: the Engler Medal in Silver (medal sensu stricto) awarded for monographic or floristic plant systematics;

198-556: The Stafleu Medal awarded for historical, bibliographic, and/or nomenclatural aspects of plant systematics; and the Stebbins Medal awarded for phylogenetic plant systematics and/or plant evolution. The medals honor Adolf Engler (24 March 1844–10 October 1930), Frans Antonie Stafleu (8 September 1921–16 December 1997), and George Ledyard Stebbins, Jr. (6 January 1906–19 January 2000). Taxon (journal) Taxon

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216-680: The code is the Shenzhen Code adopted by the International Botanical Congress held in Shenzhen , China, in July 2017. As with previous codes, it took effect as soon as it was ratified by the congress (on 29 July 2017), but the documentation of the code in its final form was not published until 26 June 2018. For fungi the Code was revised by the San Juan Chapter F in 2018. The 2025 edition of ICBN,

234-557: The formal botanical names that are given to plants, fungi and a few other groups of organisms, all those "traditionally treated as algae, fungi, or plants". It was formerly called the International Code of Botanical Nomenclature ( ICBN ); the name was changed at the International Botanical Congress in Melbourne in July 2011 as part of the Melbourne Code which replaced the Vienna Code of 2005. The current version of

252-564: The ones listed above. In addition to electronic versions of its print publications, the IAPT maintains the "Names in Current Use", a database of scientific names of extant botanical genera. The IAPT established two Engler Medals in honour of Adolf Engler in 1986: the Engler Medal in Gold awarded every six years for outstanding lifetime contributions to plant taxonomy and presented since 1987 at each International Botanical Congress (IBC), and

270-526: The organization of international symposia on problems of plant systematics. The IAPT also seeks to achieve uniformity and stability in plant names . It accomplishes this through the International Code of Nomenclature for algae, fungi, and plants , previously known as the International Code of Botanical Nomenclature , and through the oversight of the International Bureau for Plant Taxonomy and Nomenclature. The association's official journal

288-414: The study and conservation of plant biodiversity, and works to raise awareness of the general public to this issue. The organization also facilitates international cooperation among botanists working in the fields of plant systematics, taxonomy , and nomenclature . This is accomplished in part through sponsorship of meetings and publication of resources, such as reference publications and journals. IAPT

306-695: Was adopted as the "best guide to follow for botanical nomenclature" at an "International Botanical Congress" convened in Paris in 1867. Unlike modern Codes, it contained recommendations for naming to serve as the basis for discussions on the controversial points of nomenclature, rather than obligatory rules for validly published and legitimate names within the Code. It was organized as six sections with 68 articles in total. Multiple attempts to bring more "expedient" or more equitable practice to botanical nomenclature resulted in several competing codes, which finally reached

324-408: Was founded in 1950 as a not-for-profit organisation for the purposes of publication of a periodical ( Taxon ) dealing with activities of the association and with objects of general importance for plant taxonomy, the publication of books and indices of utility for plant taxonomists ( Regnum Vegetabile ), the establishment and maintenance of committees for specific taxonomic and nomenclatural purposes, and

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