This article's lead section contains information that is not included elsewhere in the article. (May 2022)
In biology, a tribe is a taxonomic rank above genus, but below family and subfamily. It is sometimes subdivided into subtribes. By convention, all taxonomic ranks from genus upwards are capitalized, including both tribe and subtribe.
In botany, the standard ending for the name of a botanical tribe is "-eae". Examples include the tribes Acalypheae and Hyacintheae. The tribe Hyacintheae is divided into subtribes, including the subtribe Massoniinae. The standard ending for the name of a botanical subtribe is "-inae".
In bacteriology, the form of tribe names is as in botany, e.g., Pseudomonadeae, based on the genus name Pseudomonas.
An unfamiliar taxonomic rank cannot necessarily be identified as a tribe merely by the presence of one of the standard suffixes:[note 1]
- zoological -ini uniquely suffixes the animal tribe, 
- zoological -ina uniquely suffixes the animal subtribe
- zoological -inae uniquely suffixes the animal subfamily
- botanical -eae also suffixes class -phyceae, suborder -ineae, family -aceae, and subfamily -oideae (these additional -eae ranks are present in bacteria, plants, algae, and fungi, but not animals)
Accordingly, working within animals alone, subfamily -inae, tribe -ini, and subtribe -ina are unique suffixes to their specific taxonomic ranks. At the other extreme, working within algae alone, -eae suffixes class -phyceae, suborder -ineae, family -aceae, subfamily -oideae, and tribe -eae. The longer suffixes themselves suffixed with -eae must first be eliminated before recognizing an unfamiliar -eae designation as belonging to rank tribe.
- ^ Italics in section "Rank recognition" indicate lexical rather than taxonomic distinctions.
- ISBN 978-3-87429-425-6Article 4
- ISBN 9780853010067.
- ^ "Chapter 3: Rules of Nomenclature with Recommendations", International Code of Nomenclature of Bacteria: Bacteriological Code, 1990 Revision, ASM Press, 1992
- ^ a b c d Turland, N. J.; Wiersema, J. H.; Barrie, F.R.; Greuter, W. (2011), Best practice in the use of the scientific names of animals: Support for editors of technical journals. Bulletin of Zoological Nomenclature 68(4): 313–322. Article 29
- ^ S2CID 83550499Article 16
- ^ S2CID 83550499Article 19