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Folia Geobotanica

, Volume 29, Issue 1, pp 91–100 | Cite as

Chromosome numbers in selectedHieracium species in the Krkonoše Mts. (the West Sudeten)

  • Jindřich Chrtek jun
Article

Abstract

Chromosome numbers are given of 15 species of the genusHieracium L. s. str., representing seven species groups (in the sense of Flora Europaea, roughly corresponding to Zahn's “species principales”) from the Krkonoše Mts., N. Bohemia and SW Poland. For the first time chromosome numbers are reported forH. melanocephalum Tausch (2n=27),H. tubulosum Tausch (2n=36),H. schustleri Zlatník (2n=36),H. fritzei F. Schultz (2n=27),H. rohlenae Zlatník (2n=27),H. nigrescens Willd. (2n=36),H. decipiens Tausch (2n=36),H. atrellum Juxip inSchischkin etBobrov (2n=27),H. subnigrescens (Fries exNorrlin)Dahlst. (2n=36),H. sudeticum Sternberg (2n=36),H. pedunculare Tausch (2n=36),H. glandulosodentatum Uechtr. (2n=36),H. wimmeri Uechtr. (2n=27). InHieracium alpinum L. s. str. the number 2n=27 has been confirmed. The results show a high proportion of tetraploid taxa; no diploids have been found.

Keywords

Alpine belt Compositae Karyology 

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Copyright information

© Institute of Botany 1994

Authors and Affiliations

  • Jindřich Chrtek jun
    • 1
  1. 1.Institute of BotanyAcademy of Sciences of the Czech RepublicPrůhoniceCzech Republic

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