Problem: When I look up a species clone, the name and description at the right are different. Is this a mistake?
No, this is not a mistake, but the explanation is a long one.
The African Violet Society of America is the International Cultivar Registration Authority (ICRA) for the genus Saintpaulia.* Notice the word 'cultivar.' We have no authority over the naming of the species. That is generally done through research (based upon similarities in structure and DNA) by botanists. Recent research has suggested that there are only nine species of Saintpaulia: brevipilosa, goetzeana, inconspicua, ionantha, nitida, pusila, rupicola, shumensis, and teitensis. The species ionantha is further divided into eight subspecies: grandifolia, grotei, ionantha, mafiensis, occidentalis, orbicularis, pendula, and velutina. In addition, the subspecies ionantha (S. ionantha subsp. ionantha) is divided into two varieties: diplotricha and ionantha. While there are a few different conclusions from other research, the above is what the African Violet Society of America has accepted as the new arrangement of the species.
*UPDATE January 2017: Recently the genus Saintpaulia has been reclassified, and is no longer a genus. It is a section under Streptocarpella, which is a subgenus under the genus Streptocarpus. In other words, Saintpaulias are now Streptocarpus. However, AVSA will continue to be the ICRA for Saintpaulia, while the Gesneriad Society will continue to be the ICRA for all other gesneriads.