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Cytotaxonomic Studies in Iberian and Macaronesian Species of Carex (Cyperaceae)

Modesto Luceño
Willdenowia
Bd. 22, H. 1/2 (Dec. 2, 1992), pp. 149-165
Stable URL: http://www.jstor.org/stable/3996877
Page Count: 17
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Cytotaxonomic Studies in Iberian and Macaronesian Species of Carex (Cyperaceae)
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Abstract

The meiotic behaviour of 35 populations belonging to 19 species of Carex, which grow in the Iberian Peninsula and the Macaronesian region, is analyzed. Most of the species showed a regular meiotic behaviour, with the exception of C. leporina and C. disticha. Chromosomal fusion and reciprocal translocations are suggested as the mechanisms of karyologic evolution in C. leporina, whereas a high intraindividual variation of the chromosome number was observed in C. disticha. Moreover, chromosome numbers are given for the first time for 8 species growing in the Iberian Peninsula. In addition, a new chromosome number is presented for C. remota and the first counts are reported for the Canarian endemic C. perraudieriana as well as for the Azorean endemic C. hochstetterana.

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