Towards a revision of Taraxacum sect. Borealia (Compositae, Crepidinae) in Siberia and the continental Far East, with special reference to the dandelions of the Altai and Kamchatka

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F25%3A00605578" target="_blank" >RIV/67985939:_____/25:00605578 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.11646/phytotaxa.679.1.1" target="_blank" >https://doi.org/10.11646/phytotaxa.679.1.1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.11646/phytotaxa.679.1.1" target="_blank" >10.11646/phytotaxa.679.1.1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Towards a revision of Taraxacum sect. Borealia (Compositae, Crepidinae) in Siberia and the continental Far East, with special reference to the dandelions of the Altai and Kamchatka

Popis výsledku v původním jazyce

The genus Taraxacum (Asteraceae, Crepidinae) is rather underexplored in the Asiatic part of Russia, and many published names require a revision. This particularly concerns T. sect. Borealia, a circumpolar Arcto-Alpidic group. We revised all the published names referable to T. sect. Borealia from the continental Asiatic Russia. On the basis of our material from the Altai and Central Siberia, a new collection from Kamchatka and older herbarium collections, we recognize 62 species, including 20 new species, 13 from the Russian part of the Altai, four new species from Irkutsk Region, Siberia, and another two from Kamchatka. A rich cultivated collection from the Altai in Kazakhstan yielded another new species. With two exceptions, all the species are agamospermous, which was estimated on the basis of indirect indicators. Many of the previously published names are difficult to evaluate because of a scanty original material, imperfectly preserved type specimens, unknown achenes etc. The oldest name in T. sect. Borealia, T. ceratophorum (Ledeb.) DC., was frequently used in a very broad sense for the whole group of species. We examined the original material of Leontodon ceratophorus Ledeb. and compared it with other members of this section. We consider it as conspecific with T. trigonolobum Dahlst., and the name T. ceratophorum s. str. is therefore used for the latter taxon. A brief comparison of Taraxacum in northern Asia and the northernmost North America is provided. Both floras share at least five dandelion species.

Název v anglickém jazyce

Towards a revision of Taraxacum sect. Borealia (Compositae, Crepidinae) in Siberia and the continental Far East, with special reference to the dandelions of the Altai and Kamchatka

Popis výsledku anglicky

The genus Taraxacum (Asteraceae, Crepidinae) is rather underexplored in the Asiatic part of Russia, and many published names require a revision. This particularly concerns T. sect. Borealia, a circumpolar Arcto-Alpidic group. We revised all the published names referable to T. sect. Borealia from the continental Asiatic Russia. On the basis of our material from the Altai and Central Siberia, a new collection from Kamchatka and older herbarium collections, we recognize 62 species, including 20 new species, 13 from the Russian part of the Altai, four new species from Irkutsk Region, Siberia, and another two from Kamchatka. A rich cultivated collection from the Altai in Kazakhstan yielded another new species. With two exceptions, all the species are agamospermous, which was estimated on the basis of indirect indicators. Many of the previously published names are difficult to evaluate because of a scanty original material, imperfectly preserved type specimens, unknown achenes etc. The oldest name in T. sect. Borealia, T. ceratophorum (Ledeb.) DC., was frequently used in a very broad sense for the whole group of species. We examined the original material of Leontodon ceratophorus Ledeb. and compared it with other members of this section. We consider it as conspecific with T. trigonolobum Dahlst., and the name T. ceratophorum s. str. is therefore used for the latter taxon. A brief comparison of Taraxacum in northern Asia and the northernmost North America is provided. Both floras share at least five dandelion species.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10611 - Plant sciences, botany

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Phytotaxa

ISSN

1179-3155

e-ISSN

1179-3163

Svazek periodika

679

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NZ - Nový Zéland

Počet stran výsledku

147

Strana od-do

1-147

Kód UT WoS článku

001402271400001

EID výsledku v databázi Scopus

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