Taraxacum nigricans, T. alpestre and allies in the Taraxacum sect. Alpestria: taxonomy, geography and conservation status

0382507 - BÚ 2013 RIV CZ eng J - Journal Article
Štěpánek, Jan - Kirschner, Jan - Jarolímová, Vlasta - Kirschnerová, Ludmila
Taraxacum nigricans, T. alpestre and allies in the Taraxacum sect. Alpestria: taxonomy, geography and conservation status.
Preslia. Roč. 83, č. 4 (2011), s. 537-564. ISSN 0032-7786. E-ISSN 0032-7786
R&D Projects: GA ČR GA206/07/1555; GA MŠMT LC06073
Institutional research plan: CEZ:AV0Z60050516
Keywords : agamosperly * geografical parthenogenesis * typification
Subject RIV: EF - Botanics
Impact factor: 2.521, year: 2011

A long-standing problem with the taxonomic status and synonymy of the names Taraxacum nigricans (Kit.) Reichenb. and T. alpestre (Tausch) DC. is resolved. These two names, the oldest ones referable to high mountain dandelions in Central Europe, are typified, and a detailed comparison of these species’ morphology, genotype make-up, karyotypes and distribution is provided, together with a discussion of other cases of similar and probably closely related agamospermous taxa of Taraxacum and Hieracium. Taraxacum nigricans (2n = 32) and T. alpestre (2n = 32) are endemic to the Nízke Tatry Mts, Slovakia, and the Krkonoše/Karkonosze Mts, Czech Republic/Poland, respectively. A detailed analysis of cultivated and wild material from the Carpathians revealed the existence of a sexual taxon very close to the above two species and endemic to the region of the Bucegi Mts, Romania. It is described as T. carpaticum.
Permanent Link: http://hdl.handle.net/11104/0212709