Nishii, K.; Hughes, M.; Briggs, M.; Haston, E.; Christie, F.; DeVilliers, M.J.; Hanekom, T.; Roos, W.G.; Bellstedt, D.U.; Möller, M. (2015), "Streptocarpus redefined to include all Afro-Malagasy Gesneriaceae: Molecular phylogenies prove congruent with geographical distribution and basic chromosome numbers and uncover remarkable morphological homoplasies", Taxon, 64 (6): 1243–1274, doi:10.12705/646.8
Möller, M. & Cronk, Q.C.B. (1997), "Origin and Relationships of Saintpaulia (Gesneriaceae) based on ribosomal DNA internal transcribed spacer (ITS) sequences", American Journal of Botany, 84 (7): 956–965, doi:10.2307/2446286, JSTOR2446286, PMID21708650
Möller, M. & Cronk, Q.C.B. (1997), "Origin and Relationships of Saintpaulia (Gesneriaceae) based on ribosomal DNA internal transcribed spacer (ITS) sequences", American Journal of Botany, 84 (7): 956–965, doi:10.2307/2446286, JSTOR2446286, PMID21708650
Möller, M. & Cronk, Q.C.B. (1997), "Origin and Relationships of Saintpaulia (Gesneriaceae) based on ribosomal DNA internal transcribed spacer (ITS) sequences", American Journal of Botany, 84 (7): 956–965, doi:10.2307/2446286, JSTOR2446286, PMID21708650