In: Phyton, 50 Fasc. 1 (2010), S. 59-68 with 2 figures

Key words: Asteraceae, Cichorieae, Compositae, Taraxacum sect. Erythrocarpa, Taraxacum gratum Štepánek, Kirschner & Meierott spec. nova, Taraxacum voricola A. J. Richards nom. novum. – Nomenclature, systematics, taxonomy. – Flora of Georgia, Caucasus.

Summary

Štepánek, J., Kirschner J. & Meierott L. 2010. Taraxacum gratum, a new species of the section Erythrocarpa from the Transcaucasus. – Phyton (Horn, Austria) 50 (1): 59–68, with 2 figures.

A new species of Taraxacum sect. Erythrocarpa (Asteraceae-Cichorieae), T. gratum Štepánek, Kirschner & Meierott is described from the Transcaucasus Region from Central Georgia. The new species is distinct in the very early flowering time, yellow or pale stigmas, absence of pollen, large reddish fruits and dark coloration of loosely appressed outer involucral bracts. The new species is known from a number of localities in the Tbilisi region. It is compared to other members of the sect. „Erythrocarpa described or known from the Caucasus and with more widespread distribution as well as generally accepted Erythrocarpa species from the C. and E. Mediterranean. A new name, T. voricola A. J. Richards is proposed to substitute a later homonym, T. albomarginatum A. J. Richards non Kitamura of this section.