A key to the species of the genus Manniella Rchb.f.
| 1 | Lip almost flat at the apex, auricles shorter than lamina | Manniella gustavi |
| 1a | Lip hooded or saccate at the apex, auricles longer than lamina | Manniella cypripedioides |
References:
World Checklist of Monocotyledons. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/monocots/ accessed 01/04/2020; Orchidaceae of West-central Africa, vol. 1, Gdansk University Press Gdansk 2010
