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New chromosome counts of genus Stachys (Lamiaceae) from Turkey

In this study, all of the Stachys taxa determined were somatic with chromosome numbers counted as 2n = 30. This research has made a contribution to the taxonomic revision of the genus Stachys in Turkey | E. MARTİN, Ö. ÇETİN, E. AKÇİÇEK, T. DİRMENCİ Research Article Turk J Bot 35 (2011) 671-680 © TÜBİTAK doi:10.3906/bot-1009-95 New chromosome counts of genus Stachys (Lamiaceae) from Turkey Esra MARTİN1,*, Özlem ÇETİN1, Ekrem AKÇİÇEK2, Tuncay DİRMENCİ2 1 Selçuk University, Ahmet Keleşoğlu Faculty of Education, Department of Biology Education, 42090 Konya - TURKEY 2 Balıkesir University, Necatibey Faculty of Education, Department of Biology Education, 10100 Balıkesir - TURKEY Received: 28.09.2010 Accepted: 23.04.2011 Abstract: Somatic chromosome numbers of 26 Stachys L. taxa (14 species, 11 subspecies, and 1 varietas), collected from different localities in Turkey, were counted for the first time, except for Stachys byzantina C.Koch and S. thirkei C.Koch. In this study, all of the Stachys taxa determined were somatic with chromosome numbers counted as 2n = 30. This research has made a contribution to the taxonomic revision of the genus Stachys in Turkey. Key words: Chromosome number, Eriostomum, Labiatae, Stachys, Turkey Türkiye’den Stachys cinsinde (Lamiaceae) yeni kromozom sayıları Özet: Türkiye’den farklı lokalitelerden toplanan 26 Stachys L. (14 tür, 11 alttür ve 1 varyete) taksonunun somatik kromozom sayısı Stachys byzantina C.Koch ve S. thirkei C.Koch hariç ilk kez sayıldı. Bu çalışmada bütün Stachys taksonlarının diploid kromozom sayısı 2n = 30 olarak belirlendi. Çalışma Türkiye’deki Stachys cinsinin taksonomik revizyonuna katkı sağlamıştır. Anahtar sözcükler: Kromozom sayısı, Eriostomum, Labiatae, Stachys, Türkiye Introduction Stachys L. (Lamiaceae), one of the largest genera of the Lamiaceae, contains about 300 taxa. It is a cosmopolitan genus centred in the warm temperate regions of the Mediterranean and southwestern Asia, with secondary centres in North and South America and southern Africa. The genus has not been reported from Australia or New Zealand. There are 2 main centres of diversity, as assessed by the number of species. One is confined