Didymosalpinx norae (Swynn.) Keay (Rubiaceae) is a shrub native of eastern Africa, with a disjunct distribution. It occurs in the rain forests of the Indian Ocean coastal belt and in submontane forests of the Chimanimani range at the border of Mozambique and Zimbabwe. Living material at the National Botanic Garden in Belgium is used here to illustrate and describe it. Taxonomic history, distribution, habitat and cultivation requirements are also discussed. The affinity of the genus Didymosalpinx raises some questions. The material used here was also included in recent phylogenetic analyses shortly reviewed here; its belonging to the tribe Gardenieae is questionable.