New species of Taraxacum native to central Europe

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F19%3A00521734" target="_blank" >RIV/67985939:_____/19:00521734 - isvavai.cz</a>

Alternative codes found

RIV/00088382:_____/19:N0000020 RIV/61989592:15410/19:73597397

Result on the web

<a href="http://hdl.handle.net/11104/0306319" target="_blank" >http://hdl.handle.net/11104/0306319</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.23855/preslia.2019.213" target="_blank" >10.23855/preslia.2019.213</a>

Result language

angličtina

Original language name

New species of Taraxacum native to central Europe

Original language description

Further taxonomic exploration of the genus Taraxacum in central Europe was carried out to update the new identification key to the Czech flora. Within three relatively well explored groups new species were revealed, they are described as Taraxacum aspectabile (T. sect. bythrosperrna), T. clandestinum (T. sect. Palustria) and T. sparsum (T. sect. Celtica s. lat.). Taraxacum aspectabile is known to occur in Austria, Bavaria, Czech Republic and Slovakia, usually in grassland growing on alluvial sands but also in other sandy habitats. It is distinct in having deep castaneous-brown to greyish dark brown achenes with a short cone, and numerous triangular lateral leaf segments. Taraxacum clandestinum is confined to a few sites in the Pribram district, south-central Bohemia and is endemic to Bohemia. This rare species is characterized by a robust involucre with numerous but non-imbricate, ovate to broadly ovate outer phyllaries, the absence of pollen, yellow stigmas, and slender, long achenes with a thin, long cylindrical cone. Taraxacum sparsum is known from numerous localities, all in the lowland eastern part of the Bohemian Chalk Plateau. Its distinctive features include leaves with scattered conspicuous brown-purple spots above, the midvein finely striate purplish adaxially, outer phyllaries patent to patent-arcuate, abaxially dark olivaceous brownish green with a narrow white border, and a relatively thick, +/- densely and shortly spinulose achene body, suhabrutly narrowing into a short, conical cone. Taraxacum sparsum is a marginal member of T. sect. Celtica, with some resemblance to members of the section Naevosa. All of these species are polyploid agamosperms.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10611 - Plant sciences, botany

Project

<a href="/en/project/GB14-36079G" target="_blank" >GB14-36079G: Plant diversity analysis and synthesis centre (PLADIAS)</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

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

Name of the periodical

Preslia

ISSN

0032-7786

e-ISSN

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Volume of the periodical

91

Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

18

Pages from-to

213-230

UT code for WoS article

000489025300002

EID of the result in the Scopus database

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