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Javor

Symbol rozcestia O iných významoch výrazu Javor pozri Javor (rozlišovacia stránka).
Javor cukrový
Mapa celosvetového rozšírenia rodu Acer

Javor (lat. Acer) je rod rastlín z čeľade mydlovníkovité (Sapindaceae), resp. v starších systémoch z čeľade javorovité (Aceraceae).

Rod Acer má približne 170 druhov. Ich výskyt je obmedzený na mierne až subtropické oblasti severnej pologule.

Druhy (výber)

Zdroje tejto kapitoly: Systém je podľa [1]; slovenské názvy sú podľa: [2][3][4][5][6][7][8]

Charakteristika

Zvyčajne sú to vysoké opadavé stromy, no existuje aj niekoľko druhov neopadavých. Niektoré druhy sú nižšieho vzrastu a sú to buď nižšie stromy alebo kríky.

Listy javorov, s výnimkou javora jaseňolistého, sú protistojné s dlhými stopkami, jednoduché a väčšinou hlboko laločnaté, prípadne dlaňovito delené alebo zubaté. U javora jaseňolistého sú listy dlaňovito laločnaté a pri báze srdcovité. Kanada si javorový list zvolila za národný symbol a je vený na kanadskej vlajke.

Kvety sú v súkvetiach alebo chocholíkoch a to vysiacich alebo vzpriamených. Tyčinky sú po 4 až 10 v jednom kvete.

Plod je zložený z dvoch plodov krídlových tzv. dvojnažky; krídla sú jazykovité, blanité, so silnými žilkami na vonkajšom okraji. Klíčenie semien je u všetkých javorov, s výnimkou javora strieborného, nadzemné.


Iné projekty

  • Spolupracuj na Commons Commons ponúka multimediálne súbory na tému Javor
  • Spolupracuj na Wikidruhoch Wikidruhy ponúkajú informácie na tému Javor
  • Spolupracuj na Wikislovníku Wikislovník ponúka heslo Javor

Zdroj

  • Tento článok je čiastočný alebo úplný preklad článku Javor na českej Wikipédii. - len kapitola Charakteristika

Ďalšie zdroje

  1. ↑ World Checklist of Vascular Plants (WCVP) [online]. wcvp.science.kew.org, [cit. 2022-04-12]. Dostupné online.
  2. ↑ KLIMENT, J. et al. Nové a revidované slovenské mená dovážaných, zavlečených, pestovaných a ďalších na Slovensku známych cudzokrajných cievnatých rastlín. 1. Druhy rodov začínajúcich sa písmenom A. In: Kultúra slova 2022 č. 1. S. 22-23
  3. ↑ Zoznam nižsích a vyšších rastlín Slovenska (1998) [1]
  4. ↑ ARBORÉTUM MLYŇANY Slovenskej akadémie vied [online]. Bratislava: Slovenská akadémia vied, [cit. 2022-04-12]. Dostupné online.
  5. ↑ javorovité. In: Pyramída S. 1674
  6. ↑ javor. In: Encyclopaedia Beliana 7 S. 432
  7. ↑ BERO, Rastislav; TÁBOR, Ivo; TOMAŠKO, Ivan. Arborétum Mlyňany. [s.l.] : Veda, 1992. 119 s. ISBN 978-80-224-0377-1. S. 37.
  8. ↑ Arborétum Mlyňany – Cenník rastlinného materiálu [2]

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