Binomial nomenclature
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In taxonomy, binomial nomenclature, also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammati
Orcinus orca, the orca or the killer whale
Echinopsis pachanoi, the San Pedro cactus
Carl Linnaeus (1707–1778), a Swedish botanist, physician, and zoologist, invented the modern system of binomial nomenclature.
Part of page 1179 of volume 2 of the 1st edition of Linnaeus’s Species Plantarum, describing mushroom species Phallus impudicus. The body text is using polynomial nomenclature, with the trivial name attached in the margin.
Genus
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Genus is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the
Binomial nomenclature
…with an "n" before the "al" in "binominal", which is not a typographic error, meaning "two-name naming system". The first part of the name – the generic name – identifies the genus to which the species belongs, whereas the second part – the specific name or specific epithet – distinguishes the species within…
Estimated accepted genus totals by kingdom – based on Rees et al., 2020