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Recently the Asian    Gerbera    species were shown to form a clade that was not the sister group of the African    Gerbera   . In this study, the position of the Asian    Gerbera    species was further assessed based on morphology and molecular phylogenetic analyses that included six Asian    Gerbera    and 26 other species from the    Gerbera   -complex. Morphological results showed that the six Asian    Gerbera    species, which were sampled, bear leaves with the adaxial epidermal surface lacking stomates, possess bracteate scapes and lack inner ray florets. These characters suggest that the Asian    Gerbera    species are most closely related to the species of    Uechtritzia   , which also share similar pollen grain size and shape with the Asian    Gerbera   , rather than to the African    Gerbera   . Furthermore, the phylogenetic results based on two nuclear (ITS and ETS) and three chloroplast ( trn L– trn F,  trn L– rpl 32 and  trn C– pet N) sequences strongly support the Asian    Gerbera    and    Uechtritzia    forming a clade, with the latter nested within the Asian    Gerbera    species. Both morphological and molecular phylogenetic data thus confirmed the taxonomic identity of the Asian    Gerbera    and    Uechtritzia   . The authors herein formally treat the nine species of the Asian    Gerbera    and the three species of    Uechtritzia    as members of the genus    Oreoseris   , which is the earliest generic name of this lineage and has the nomenclatural priority.

Home at last III: Transferring Uechtritzia and Asian Gerbera species into Oreoseris ( Compositae , Mutisieae )