Honoring Sabin Berthelot: Nomenclature and botanical history of Berthelotia DC. (Asteraceae, Inuleae)

The genus Berthelotia DC. (presently a synonym of the accepted name Pluchea Cass.), Asteraceae, Inuleae has been regarded as comprising two species, B. lanceolata and sericea (Nutt.) Rydb. It honors French naturalist Sabin Berthelot (1794–1880) for his contribution to studies flora fauna Canary Islands. Under leadership Philip Webb (1793–1854), co-authored most important work pertinent natural history this archipelago: Histoire Naturelle des Îles Canaries. nomenclature its associated names are revisited here. holotype Polypappus sericeus Nutt. (K000974653) was located, lectotypes were assigned (G00450458) var. senegalensis (G00452584). Phylogenetic analyses based on nucleotide sequences nrDNA ITS conducted focusing members what is known Clade J Inuleae. A well-supported clade (100% P.P.) that we have labeled “Clade I” uncovered, it composed three species belong indica plus P. dioscoridis ovalis; but lineage did not support previous hypothesis include lanceolata. form monophyletic group seem be distantly related; furthermore, none these taxa sister Tessaria, South American suggested close relative Berthelotia. Ethnobotanical uses reviewed.