The phylogeny and evolution of Suessenguthia (Acanthaceae), a genus of six species from the Andean foothills and adjacent Amazonia in Bolivia, Peru and western Brazil, are discussed based on morphological and molecular (amplified fragment length polymorphism, ITS rDNA) data. Suessenguthia forms a paraphyletic group at the base of the larger genus Sanchezia. The non-overlapping geographical dist...
