Gartner's Bacillus, also known as Bacillus vaginalis, is a gram-positive bacterial species that is commonly found in the human vagina. This species is known for its ability to produce lactic acid, which plays an important role in maintaining the pH balance of the vaginal environment. The bacteria is also associated with various infections, including bacterial vaginosis. Despite its scientific name, there are various synonyms that have been used to refer to Gartner's Bacillus. These include Lactobacillus vaginalis, Corynebacterium vaginalis, and Gardnerella vaginalis. Each of these synonyms refers to the same bacterial species, and they are commonly used interchangeably in scientific literature.