Chromosome numbers in selected species of Hieracium s. str. (Hieracium subgen. Hieracium) in the Western Carpathians.

Jindřich Chrtek Jr. 1 , Patrik Mráz 2 3 & Michal Severa 4

Affiliations

  1. Institute of Botany, Academy of Sciences of the Czech Republic, CZ-252 43 Průhonice, Czech Republic
  2. Institute of Biology and Ecology, P. J. Šafárik University, Faculty of Science, Mánesova 23, SK-04154 Košice, Slovakia
  3. Institute of Botany, Slovak Academy of Sciences, Dúbravská cesta 14, SK-84223 Bratislava, Slovakia
  4. Václavská 166, CZ-251 69 Velké Popovice, Czech Republic

PDF

Abstract

Chromosome numbers of 23 species (including subspecies) of Hieracium s. str. from the Western Carpathians are presented. First chromosome numbers are reported for Hieracium kuekenthalianum (= H. tephrosoma, 2n = 36), H. praecurrens (2n = 27) and H. virgicaule (2n = 27); first counts from the Western Carpathians are given for H. atratum (2n = 27), H. bifidum (2n = 27, 36), H. carpathicum (2n = 36), H. inuloides (2n = 27), H. jurassicum (2n = 27), H. macilentum (= H. epimedium, 2n = 27), H. nigritum (2n = 36), H. pilosum (= H. morisianum, 2n = 27) and H. silesiacum (2n = 36). New ploidy level (tetraploid, 2n = 36) is reported for H. bupleuroides, hitherto published counts refer only to triploids (2n = 27). Previously published chromosome numbers were confirmed for several other species, i.e. H. alpinum (s.str., 2n = 27), H. bupleuroides (2n = 27), H. crassipedipilum (H. fritzei group, 2n = 27, 36), H. lachenalii (2n = 27), H. murorum (2n = 27), H. prenanthoides (2n = 27), H. racemosum (2n = 27), H. sabaudum (2n = 27), H. slovacum (H. fritzei group, 2n = 36), and H. umbellatum (2n = 18). Triploids and tetraploids predominate, diploids (2n = 18) were found in H. umbellatum. A comprehensive list of previously published chromosome numbers in Hieracium s. str. from the Western Carpathians is provided.

Keywords

Asteraceae, chromosome numbers, Hieracium, Slovakia

How to cite

Chrtek J. Jr., Mráz P. & Severa M. (2004) Chromosome numbers in selected species of Hieracium s. str. (Hieracium subgen. Hieracium) in the Western Carpathians. – Preslia 76: 119139