Nautilocalyx adenosiphon (Leeuwenb.) Wiehler in Selbyana 5: 29. 1978 sec. C. Feuillet & M.J. Jansen-Jacobs 2008
- ≡Episcia adenosiphon Leeuwenb. in Acta Bot. Neerl. 18: 858. 1969
- Holotype: Steyermark 88162
- Isotype: Steyermark 88162
- Isotype: Steyermark 88162 (WAG)
