Cytotaxonomical study in five taxa of the genus teucrium L. (Lamiaceae)
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In this study, karyotypes of Teucrium sandrasicum O. Schwarz, T. brevifolium Schreb., T. divaricatum Sieber subsp. villosum (Celak.) Rech.f., T. flavum L. subsp. hellenicum Rech.f. and T. kotschyanum Poech taxa growing naturally in Turkey were determined. T. sandrasicum is endemic to Turkey. The squash method for preparation was used for chromosomal investigations. As a result, T. divaricatum subsp. villosum has a somatic chromosome number as 2n = 64 while T. flavum subsp. hellenicum and T. kotschyanum have 2n = 32 chromosomes and also T. sandrasicum and T. brevifolium have 2n = 30 chromosomes. The ideograms and detailed chromosome morphology measurements of the species were performed by the use of Image Analysis System (Bs200Pro). The research has made contribution to the taxonomic revision of the genus Teucrium in Turkey.