International Code of Nomenclature for algae, fungi, and plants (Madrid Code)The latest, updated edition of the essential, authoritative reference for botanical, mycological, and phycological names. International Code of Nomenclature for algae, fungi, and plants, known as the Code, is the set of internationally agreed rules and recommendations that govern species names. Scientific naming has deep historical roots. Indeed, the system of naming organisms is the first truly global scientific standard, predating even standard