Cosmarium botrytis Menegh. ex Ralfs var. tumidum Wolle, Cosmarium notabile Bréb. var. transiens Insam et Krieger, Cosmarium tetragonum (Näg.) Arch. in Pritchard var. tetragonum, and Cosmarium vogesiacum Lemaire var. alpinum (Schmidle) Laporte are recorded for the first time for the desmid flora of Turkey. The desmids are recorded from Yedigöller Lakes in the Eastern Black Sea region of Turkey. | Research Note Turk J Bot 33 (2009) 457-460 © TÜBİTAK doi: Contribution to the desmid flora of Turkey Bülent ŞAHİN Karadeniz Technical University, Fatih Faculty of Education, Department of Biology Education, 61335 Söğütlü, Trabzon - TURKEY Received: Accepted: Abstract: Cosmarium botrytis Menegh. ex Ralfs var. tumidum Wolle, Cosmarium notabile Bréb. var. transiens Insam et Krieger, Cosmarium tetragonum (Näg.) Arch. in Pritchard var. tetragonum, and Cosmarium vogesiacum Lemaire var. alpinum (Schmidle) Laporte are recorded for the first time for the desmid flora of Turkey. The desmids are recorded from Yedigöller Lakes in the Eastern Black Sea region of Turkey. Key words: Desmids, new record, Turkey Türkiye’nin desmid florasına katkılar Özet: Cosmarium botrytis Menegh. ex Ralfs var. tumidum Wolle, Cosmarium notabile Bréb. var. transiens Insam et Krieger, Cosmarium tetragonum (Näg.) Arch. in Pritchard var. tetragonum ve Cosmarium vogesiacum Lemaire var. alpinum (Schmidle) Laporte Türkiye’nin desmid florası için ilk kez kaydedilmektedir. Desmidler Türkiye’nin Doğu Karadeniz Bölgesindeki Yedigöller’den kaydedilmiştir. Anahtar sözcükler: Desmid, yeni kayıt, Türkiye Introduction Materials and methods The desmid flora in high mountain lakes of the Eastern Black Sea region of Turkey was investigated during 1996-2006. As suitable habitats for desmid species, oligotrophic lakes are very common in the high mountains of the Eastern Black Sea region. The desmid species are relatively poor in terms of diatom species in Turkey. Four genera (Netrium, Micrasterias, Roya, and Spondylosium) and 33 taxa have been added to the desmid flora of Turkey through studies in this region (Şahin, 1998, 2000, 2002, 2007a, 2007b). The Yedigöller lakes, located at latitude 40°52´32˝N and longitude 40°37´30˝ E, consist of 7 large and small lakes ranging from 1 to 5 km2 surface area on Mount Kızılkaya in Erzurum province (Figure 1). The altitude of the
