Italicize species, variety or subspecies, and genus when used in the singular. Do not italicize or capitalize genus name when used in the plural. ... For an article about multiple genera that each have a different abbreviation, the author can use abbreviation to introduce new species.
How do you write a genus name?
Genus and species: Names should always be italicized or underlined. The first letter of the genus name is capitalized but the specific epithet is not, e.g. Lavandula angustifolia. If the meaning is clear, the generic name can be abbreviated, e.g. L. angustifolia.
Should genus names be capitalized?
In the Latin scientific names of organisms, names at the species level and below (species, subspecies, variety) are not capitalized; those at the genus level and above (e.g., genus, tribe, subfamily, family, class, order, division, phylum) are capitalized.