by specifying the names of the parent genera, but without a scientific description, and do not have a type. Nothotaxon names with the rank of a subdivision of a genus (notho-subgenus, notho-section, notho-series, etc.) are also published by listing the parent taxa and without descriptions or types. Forms of hybrid names A hybrid name can be indicated by: a multiplication sign "×" placed before the name of an intergeneric hybrid or before the epithet of a species hybrid. An intervening space is optional. e.g.: × Sorbaronia or ×Sorbaronia or × Sorbaronia is the name of hybrids between the genera Sorbus and Aronia, Iris germanica or Iris ×germanica is a species derived by hybrid speciation or by the prefix notho- attached to the rank (from Ancient Greek νόθος, nóthos, “bastard”) Crataegus nothosect. Crataeguineae Iris germanica nothovar. florentina. The multiplication sign and the prefix notho- are not part of the actual name and are disregarded for nomenclatural purposes such as synonymy, homonymy, etc. This means that a taxonomist could decide to use either form of this name: Drosera ×anglica to emphasize that it is a hybrid, or Drosera anglica to emphasize that it is a species. The names of intergeneric hybrids generally have a special form called a condensed formula, e.g., × Agropogon for hybrids between Agrostis and Polypogon. Hybrids involving four or more genera are formed from the name of a person, with suffix -ara, e.g., × Belleara. Names for hybrids between three genera can be either a condensed formula or formed from a person's name with suffix -ara. Notation The symbol used to indicate a hybrid is . (Linnaeus originally used , but abandoned it in favour of the multiplication sign.) See also Botanical nomenclature International Code of Nomenclature for algae, fungi, and plants Graft-chimaera names look similar, but use . Glossary of scientific naming How to type the × symbol Notes References External links The Language of Horticulture Botanical nomenclature Hybrid plants