Codes of plant nomenclature
Though some basic elements are deeply embedded in the ICBN, other aspects are subject to amendment and adjustment according to changing ideas in taxonomy and developments in understanding and technology. However, the ICBN can only be revised at an International Botanical Conference (IBC). The 18th IBC took place in Melbourne, Australia in July 2011.
The International Code of Nomenclature for Cultivated Plants
Many plants in gardens require no other name than that which would be attributed to them if they were found growing in the wild. However, where plants which possess distinct, desirable characteristics, which can be maintained through a process of controlled propagation, are selected or bred, some additional means of identification and communication is required.
Prior to the publication of the first edition of the ICNCP in 1953, the unregulated application of names to cultivated plants led to widespread confusion and a lack of clarity regarding the status implied by a name.
The ICNCP (sometimes called the Cultivated Plant Code) offers principles, rules and recommendations concerning the formation, establishment and styling of the names of cultivars, groups and grexes. It also contains sections on Registration and nomenclatural standard specimens.
Over the years the ICNCP has been altered and added to following International Symposia on the Taxonomy of Cultivated Plants. The latest version (the 8th edition) was published in 2009 following the most recent Symposium in Wageningen, Holland in October 2007. The most important rules contained in the present Code are given here.