I.Darbysh. (Mildbr.) 2009 - Darbyshire I (2009) Taxonomic notes and novelties in the genus Isoglossa (Acanthaceae) from east Africa. Kew Bulletin 64(3): 401-427. doi: 10.1007/s12225-009-9123-5.
There is no corrections for Isoglossa floribunda subsp. salviiflora yet.