Abstract
Cladistic analyses using parsimony jackknifing and Bayesian inference were performed to elucidate phylogenetic relationships in the genus Dionysia. DNA sequences from one nuclear DNA region (ITS) and from two chloroplast genome regions (rps16 intron and trnL‐trnF) were used with and without the addition of a morphological character matrix. A total of 43 species from Primulaceae were sequenced, including 39 species of Dionysia. The results strongly suggest that the sister species to the rest of genus Dionysia are Dionysia balsamea and D. hissarica, not D. mira. No section and subsection with more than one species of Dionysia as currently circumscribed appears to be monophyletic. Instead, species often belong to clades corresponding to geographical proximity. Earlier proposed notions of evolutionary trends and geographical migrations in Dionysia are discussed.
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