ammus
Ammus is a name that appears in scientific nomenclature in multiple, unrelated groups. In zoological and botanical catalogs, Ammus has been used as a genus name at different times; however, there is no single, widely accepted current taxon that bears the name Ammus. In some lineages the name is considered a junior synonym of another genus or is regarded as an invalid or unused nomenclatural act due to homonymy or reclassification. The fragmentation of old classifications, combined with changes in nomenclatural rules, has led to inconsistent usage across sources.
Because the name does not correspond to a stable, widely recognized taxon, most contemporary databases list
Etymology: The name "Ammus" derives from Latin roots used in taxonomic naming; the exact meaning is not
See also: Taxonomic nomenclature, Genus, Synonym (taxonomy), Homonym (biology).