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Access Resource - Global Biodiversity Information Facility

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28 Terms used in Bionomenclature<br />

antetype: (zool., unoff.) a prototype (q.v.).<br />

anticipation: (bot.) of the proposal of a name or epithet in the expectation<br />

of the discovery or future acceptance of the taxon .<br />

antitype: (1) (zool., unoff.) an opposite type; a countertype (q.v.). (2)<br />

(zool., unoff.) a corresponding specimen of a type species obtained<br />

at the same time and location as the nomenclatural type. (3) (zool.,<br />

unoff.) every specimen other than the holotype in the type-series, or<br />

all the specimens on which the author bases the series except any<br />

that were referred to as variants, or doubtfully associates with the<br />

nominal species, or expressly excluded from it; see paratype.<br />

antonym: words of opposite meaning; used in biological nomenclature<br />

(unoff.) for each name that is not a synonym<br />

ap.: see apud.<br />

apogenotype, [apogenotyp]: (zool., unoff.) the automatically generated<br />

type species of a genus-group name when renamed because of<br />

homonymy; i.e. type fixation of a genus through substitution.<br />

apomict, [ap.]: (cult. pl.) a plant which is able to produce viable seed or<br />

spores without fertilization, and whose progeny is therefore usually<br />

genetically uniform.<br />

apomixis: the process by which an apomict is produced.<br />

apomorphy: (phyl.) a derived character state; a new feature that arose<br />

during the course of evolution.<br />

apomorphy-based clade: (phyl.) a clade originating from the ancestor in<br />

which a particular character state (apomorphy; q.v.) originated; a<br />

clade whose name is defined using an apomorphy-based definition<br />

(q.v.).<br />

apomorphy-based definition: (phyl.) a definition that associates a name<br />

with a clade originating with the first ancestor of specified<br />

organisms and/or species (internal specifier taxa) to evolve a<br />

particular apomorphy (internal specifier apomorphy).<br />

apomorphy-modfied node-based definition: (phyl.) a node-based<br />

definition that incorporates wording from apomorphy-based<br />

definitions to include all extant organisms as internal specifiers<br />

without explicitly naming them; apomorphy-modified node-based

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