Revision of the genus genlisea (Lentibulariaceae) in Africa and Madagascar with notes on ecology and phytogeography

Abstract

The African and Madagascan representatives of the carnivorous genus Genlisea are investigated. All African material belongs to subgenus Genlisea and can be assigned to 10 taxa, which mainly differ in indumentum of calyx, corolla and ovary. The former section Tayloria, restricted to South America, is raised to subgeneric rank. One species, Genlisea margaretae, occurs in South-East Africa and Madagascar as well. All species are restricted to specific oligotrophous habitats like granitic outcrops (inselbergs), ferricretes, white sands and swamps. Genlisea taylori from Angola is described as new. All species are described and illustrated and a key and distribution maps are presented.