Abstract

Background and aims – A new species of Amorphophallus (Araceae) is described from D.R. Congo in connection with preparing the family treatment for the Flore d’Afrique centrale. Another species is recorded for the first time from Rwanda. Methods – Standard herbarium practices were applied. Key results – Amorphophallus dumboi sp. nov. is related to A. margretae. The differences between these species are discussed and distribution maps for the taxa are presented. Both species are range-restricted in the Albertine Rift and preliminarily assessed as Critically Endangered. Amorphophallus mayoi is for the first time recorded for Rwanda. The taxon, originally described as a subspecies of A. calabaricus, is raised here to specific rank.

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