Typifications in the tribe Browallieae (Cestroideae: Solanaceae)

Abstract The tribe Browallieae is a monophyletic group comprising Browallia and Streptosolen . These genera are of significant interest in the horticulture industry due to their ornamental potential. Despite their clear placement in Solanaceae, the tribe presents several taxonomic, phylogenetic, and nomenclatural challenges. Our study addresses these last issues as the first step to resolving the systematic and circumscription problems of the group. We analyze all the 45 names historically attributed to the tribe Browallieae, of which only 24 are currently recognized as accepted species. Browallia americana is the taxon with the highest synonymy, with 5 homotypic and 15 heterotypic synonyms. We designate 30 lectotypes and 3 neotypes, 18 based on herbarium specimens and 15 on original illustrations.