Typification of Alopecurus laguriformis Schur ex Griseb. & Schenk (Poaceae) with comments on its supposed occurrence in Ukraine

The article unravels the issue of the supposed occurrence of a narrow-range species Alopecurus laguriformis Schur ex Griseb. & Schenk in Ukraine. The study shows that this information originated from Zapałowicz’s (1889, 1906) publications based on wrongly determined specimens of A. pratensis. Revision of literature and herbarium data as well as field surveys indicate that in fact A. laguriformis does not occur in the Ukrainian part of the Carpathians and its range is limited to Romania. Confusion in the circumscription of the species is clarified and its historical background is described. The name Alopecurus laguriformis is lectotypified here from the specimen stored at GOET. Because the species’ name was first mentioned by Shur (1850) as a nomen nudum, while its protologue was provided by Grisebach & Schenk (1852), the correct citation for the taxon is Alopecurus laguriformis Schur ex Griseb. & Schenk or Alopecurus pratensis L. subsp. laguriformis (Schur ex Griseb. & Schenk) Tzvelev depending on the taxonomic treatment. Recognition of the species’ rank for that alpine taxon appears more reasonable because of its morphological distinctiveness.