P.Taylor (P.Taylor) 1971 - Taylor P (1971) A New Species of Utricularia (Lentibulariaceae) from Rwanda and Burundi and Notes on Several Species of Utricularia Occurring in the Area of the Flore du Congo, du Rwanda et du Burundi. Bulletin Du Jardin Botanique National De Belgique 41: 269-272. doi: 10.2307/3667638.
There is no corrections for Utricularia microcalyx yet.