Lara, FranciscoMazimpaka, VicenteMedina Bujalance, RafaelCaparrós, RutGarilleti, RicardoSchweizerbart science publishers2024-01-262024-01-262010-11-01ISBN 978-3-443-51060-21438-9134https://hdl.handle.net/20.500.14352/95648This work was funded by the Spanish Ministry of Education and Science, Grants CGL2004–03513 and CGL2007–61389.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 most diverse and interesting areas for Orthotrichaceae in the Palaearctic.engbook parthttps://www.schweizerbart.de/publications/detail/isbn/9783443510602/Nova_Hedwigia_Beiheft_138restricted access582.32Anatolia, Caucasus Region, mosses, Nyholmiella, Orthotrichum, Pontic Mountains, Ulota, ZygodonBotánica (Biología)2417.01 Briología