Name: Gardnerella lacydonensis Allini Ntiguemassa et al. 2026

Category: Species

Proposed as: sp. nov.

Etymology: la.cy.do.nen’sis. N.L. fem. adj. lacydonensis, from Lacydon, the name of the ancient port of Marseille, the French city where the strain was first described

Pronunciation (Latin), gender: … la-ky-do-NEN-sis, feminine

Type strain: CECT 31121; CSUR Q9181; Marseille Q9181

Conduct genome-based taxonomy at

Valid publication: Allini Ntiguemassa P, Beye M, Orain N, Bellali S, Alibar S, Andrieu C, Hammoud A, Dubourg G, Mediannikov O, Levasseur A, et al. Further dissection of Gardnerella vaginalis: description of Gardnerella lacydonensis sp. nov. (formerly genomic species 2), Gardnerella bretellae sp. nov. (formerly genomic species 9), Gardnerella massiliensis sp. nov. (formerly genomic species 14) and Gardnerella phocaeensis sp. nov. Int J Syst Evol Microbiol 2026; 76:7028. 🇫🇷

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (but should be taxonomically suspended)

• Notes:
  • 🎓 Name mentioned 1 time in PubMed until 2026-03-17.
  • 🪓 Organisms assigned to this species have previously been classified as Gardnerella vaginalis (Gardner and Dukes 1955) Greenwood and Pickett 1980. Publication: Greenwood JR, Pickett MJ. Transfer of Haemophilus vaginalis Gardner and Dukes to a new genus, Gardnerella: G. vaginalis (Gardner and Dukes) comb. nov. Int. J. Syst. Bacteriol. 1980; 30:170-178.
  • 🤪 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus. This name should be taxonomically suspended (but isn't for some reason) in favour of Gardnerella vaginalis (Gardner and Dukes 1955) Greenwood and Pickett 1980. Publication: Greenwood JR, Pickett MJ. Transfer of Haemophilus vaginalis Gardner and Dukes to a new genus, Gardnerella: G. vaginalis (Gardner and Dukes) comb. nov. Int. J. Syst. Bacteriol. 1980; 30:170-178.

Parent taxon: Gardnerella Greenwood and Pickett 1980

Assigned by: Allini Ntiguemassa P, Beye M, Orain N, Bellali S, Alibar S, Andrieu C, Hammoud A, Dubourg G, Mediannikov O, Levasseur A, et al. Further dissection of Gardnerella vaginalis: description of Gardnerella lacydonensis sp. nov. (formerly genomic species 2), Gardnerella bretellae sp. nov. (formerly genomic species 9), Gardnerella massiliensis sp. nov. (formerly genomic species 14) and Gardnerella phocaeensis sp. nov. Int J Syst Evol Microbiol 2026; 76:7028. 🇫🇷

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Record number: 71130