I.Darbysh. (Lindau) 2009 - Darbyshire I (2008) Notes on the genus Dicliptera (Acanthaceae) in Eastern Africa. Kew Bulletin 63(3): 361-383. doi: 10.1007/s12225-008-9053-7.
There is no corrections for Dicliptera maculata subsp. usambarica yet.