Section (biology)

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LifeDomainKingdomPhylumClassOrderFamilyGenusSpecies
The hierarchy of biological classification's eight major taxonomic ranks. Intermediate minor rankings are not shown.

In biology a section (Latin: sectio) is a taxonomic rank that is applied differently in botany and zoology.

In botany

Within flora (plants), 'section' refers to a botanical rank below the genus, but above the species:

In zoology

Within fauna (animals), 'section' refers to a zoological rank below the order, but above the family:

In bacteriology

The International Code of Nomenclature for Bacteria states that the Section rank is an informal one, between the subgenus and species (as in botany).