ИСТИНА

Tordylium L. is one of the moderately critical genera in the Umbelliferae and its taxonomy remains complicated. Many genera that were split from Tordylium in the past (e.g. Ainsworthia Boiss., Hasselquistia L., Condylocarpus Hoffm. and Synelcosciadium Boiss.), are now proposed to be congeneric with it. In floristic treatments, the genus Ainsworthia is treated as independent. With the aim to resolve relationships of Tordylium s.l. we reassess in detail the carpological characters that are still important criteria in the taxonomy and identification of Umbelliferae (Pimenov, Ostroumova, 2014), and conduct analysis of nucleotide sequences of nuclear ribosomal DNA internal transcribed spacer (ITS) region.