%0 Book Section %T Northeastern Turkey, an unnoticed but very important area for the Orthotrichaceae (Bryophyta) publisher Schweizerbart and Borntraeger science publishers %D 2010 %U ISBN 978-3-443-51060-2 %@ https://hdl.handle.net/20.500.14352/95648 %X In the course of a prospecting trip in square A4 in Turkey, the authors have recorded a total of 29 species of Orthotrichaceae. This increases by 19 the number of species in this moss family in the area. Among the discoveries are 11 new records for Turkey: Orthotrichum callistomum, O. consobrinum, O. crenulatum, O. hispanicum, O. rogeri, O. sordidum, O. stellatum, O. vladikavkanum, Ulota coarctata, U. rehmannii and Zygodon dentatus, some of them previously unknown in Asia. Furthermore, Orthotrichum microcarpum is reported for the fi rst time from Anatolia and new populations of some other little known mosses in Turkey are documented: O. alpestre, O. patens, O. scanicum, and O. vittii. Data on distribution and habitat in the prospected territory are provided for each of the species. The novelties are discussed and comments provided on global distribution and key characters for differentiation, in some cases accompanied by illustrations. In the light of the new data, North-eastern Turkey is shown to be one of the mostdiverse and interesting areas for Orthotrichaceae in the Palaearctic. %~