Taxonomic revision of selected species in Taraxacum sect. Erythrosperma (Asteraceae: Cichorieae) from the E Mediterranean region

Abstract: Selected species in Taraxacum F. H. Wigg., belonging to T. sect. Erythrosperma (H. Lindb.) Dahlst., described by C. E. Sonck, G. E. Haglund and A. J. Richards, were revised taxonomically. The types of their names were compared with plant material mainly from the Balkan Peninsula and Crimea. The main sources of material were ample collections of R. Willing and E. Willing from Greece (deposited at B), and plants collected and/or cultivated by us from the Balkan Peninsula and Crimea (deposited at PRA). Four names are relegated to synonymy. Taraxacum amborum G. E. Hagl. is newly interpreted and lectotypified, and T. viale Sonck is synonymized with it. Taraxacum edessicum Sonck and T. aestuans Sonck were found to be conspecific with T. salonikiense Sonck. Taraxacum gionense A. J. Richards belongs to T. botanicorum Sonck. Range extensions include T. salonikiense in Albania, T. amborum in Bulgaria, Montenegro and Romania, and T. egnatiae from Ukraine. Citation: Stěpanek J. & Kirschner J. 2018: Taxonomi...