Key to the species of Bartholina R.Br.
| 1a | Segments of lip filiform throughout | Bartholina burmanniana |
| 1b | Segments of lip abruptly clavate at apex | Bartholina etheliae |
World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/ accessed 26.08.2013