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Variation patterns within the genusCarex L. sect.Digitatae (Fries) Christ in Bulgaria

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Abstract

Seventeen natural Bulgarian populations of the species of the genusCarex sect.Digitatae were studied morphologically and karyologically. Stepwise discriminant analysis was used as a multivariate test for the separation of groups of populations from different taxa and to find a subset of characters contributing most for this separation. The following taxa were found in Bulgaria:C. humilis Leysser var.humilis; C. humilis var.longifolia Stoeva etPopova, var. n.;C. digitata L.;C. ornithopoda Willd. subsp.bulgarica (Vel.) Stoeva etPopova, comb. n. Aneuploid series of some chromosome numbers were found inC. digitata — 2n=48, 50, 52, 54, 56 and inC. ornithopoda subsp.bulgarica−2n=52, 53, 54, 56.C. humilis has 2n=36 and a much more heterogeneous karyotype than that of the above taxa. The values of the Euclidean distance between the populations vary within similar limits in both speciesC. humilis andC. digitata; this is not in accordance with the karyological results. The within and between population morphological variations were compared in each species. The first dominates in overall variation, which is probably connected with the very large populations and their mosaic space structure.

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Authors and Affiliations

  1. Botanical Institute, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria

    Milka P. Stoeva

  2. Central Laboratory of Biophysics, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria

    Evgenija D. Popova

Authors
  1. Milka P. Stoeva
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  2. Evgenija D. Popova
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Stoeva, M.P., Popova, E.D. Variation patterns within the genusCarex L. sect.Digitatae (Fries) Christ in Bulgaria. Folia geobot. phytotax. 26, 379–395 (1991). https://doi.org/10.1007/BF02912773

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  • DOI: https://doi.org/10.1007/BF02912773

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