See text Tetraphyllum is a genus of flowering plants belonging to the family Gesneriaceae.

As of April 2021[update], there was no consensus as to whether the correct scientific name for the genus is Tetraphyllum or Tetraphylloides, some sources using the former and some the latter.

[3][4] Earlier, in 1880, A. Hosius and W. von der Marck had published the same genus name for a fossil, which they considered might be a plant, classifying it as "Plantae incertae sedis".

[7] IPNI does not accept this argument, on the grounds that the botanical status of the name, and hence its illegitimacy, applies at the time it was published.

[8] As of April 2021[update], Plants of the World Online accepted three species (placing them in the genus Tetraphylloides):[1]