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Chromosome Numbers of Some Species of the Genus Hieracium s.str. (Asteraceae) from Turkey

Sema Hayirlioğlu-Ayaz and Hüseyin İnceer
Folia Geobotanica
Vol. 39, No. 3 (Sep., 2004), pp. 319-325
Published by: Springer
Stable URL: http://www.jstor.org/stable/25134053
Page Count: 7
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Chromosome Numbers of Some Species of the Genus Hieracium s.str. (Asteraceae) from Turkey
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Abstract

Results of a karyological analysis of eight species collected from northeast Anatolia, Turkey are presented. The following chromosome numbers were determined: H. medianiforme (Litv. et Zahn) Juxip 2n=36, H. karagollense (Zahn) P.D. Sell et C. West 2n=36, H. argillaceoides (Litv. et Zahn) Juxip 2n=36, H. amblylepis Boiss. 2n=27, H. lanceolatum Vill. 2n=27, H. asterodermum (Woronow et Zahn) Juxip 2n=27, H. umbellatum L. 2n=18, H. laevigatum Willd. 2n=27. The chromosome numbers of five of these seven species are presented for the first time. The results show a high proportion of triploids and tetraploids within the taxa studied.

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